diff --git a/1806A.cpp b/Codes/1806 A - Walking Master/1806A.cpp
similarity index 97%
rename from 1806A.cpp
rename to Codes/1806 A - Walking Master/1806A.cpp
index 7aa847e..fc84966 100644
--- a/1806A.cpp
+++ b/Codes/1806 A - Walking Master/1806A.cpp	
@@ -1,75 +1,75 @@
-#include<bits/stdc++.h>
-using namespace std;
-
-#define FAST_IO             (ios_base:: sync_with_stdio(false),cin.tie(NULL));
-
-#define int                 long long
-#define ll                  long long
-#define ull                 unsigned long long
-#define endl                '\n'
-#define ff                  first
-#define ss                  second
-#define pb                  push_back
-#define all(x)              x.begin(), x.end()
-#define sz(x)               (int)(x).size()
-
-#define yes                 cout<<"YES"<<endl
-#define no                  cout<<"NO"<<endl
-#define neg1                cout<<-1<<endl
-
-#define PI                  3.141592653589793238
-#define MIN                 INT_MIN
-#define MAX                 INT_MAX
-#define INF                 LONG_LONG_MAX
-#define MOD                 1000000007
-#define LLM                 1000000000000000007
-
-ll factorial(ll n)              { if(n==0) return 1; ll res = 1; for (ll i = 2; i <= n; i++) res = res * i; return res; }
-ll nPr(ll n, ll r)              { return factorial(n) / factorial(n - r); }
-ll nCr(ll n, ll r)              { return factorial(n) / (factorial(r) * factorial(n - r));}
-ll gcd(ll a, ll b)              { if (b == 0) return a; return gcd(b, a % b); }
-ll lcm(ll a, ll b)              { return (a * b) / gcd(a, b);}
-ull mypow(ull a, ull b)         { ull ans = 1; a%=MOD; while(b){ if (b&1) ans = (ans*a) % MOD; a = (a*a) % MOD; b >>= 1; } return ans; }
-bool isPrime(ll n)              { if(n <= 1) return false; for(ll i = 2; i*i <= n; i++) if(n % i == 0) return false; return true; }
-
-#ifndef ONLINE_JUDGE
-#define dbg(x) cerr << #x <<" "; _print(x); cerr << endl;
-#define dbgin(x) cerr << #x <<" "; _print(x); cerr << ";"<<endl;
-#else
-#define dbg(x)
-#define dbgin(x)
-#endif
-
-void _print(int t) {cerr << t;}void _print(string t) {cerr << t;}void _print(char t) {cerr << t;}
-void _print(long double t) {cerr << t;}void _print(double t) {cerr << t;}void _print(unsigned ll t) {cerr << t;}
-template <class T, class V> void _print(pair <T, V> p);
-template <class T> void _print(vector <T> v);template <class T> void _print(set <T> v);
-template <class T, class V> void _print(map <T, V> v);template <class T> void _print(multiset <T> v);
-template <class T, class V> void _print(pair <T, V> p) {cerr << "{"; _print(p.first); cerr << ","; _print(p.second); cerr << "}";}
-template <class T> void _print(vector <T> v) {cerr << "[ "; for (T i : v) {_print(i); cerr << " ";} cerr << "]";}
-template <class T> void _print(set <T> v) {cerr << "[ "; for (T i : v) {_print(i); cerr << " ";} cerr << "]";}
-template <class T> void _print(multiset <T> v) {cerr << "[ "; for (T i : v) {_print(i); cerr << " ";} cerr << "]";}
-template <class T> void _print(unordered_set <T> v) {cerr<<"[ "; for(T i : v) {_print(i); cerr<<" ";} cerr<<"]";}
-template <class T, class V> void _print(map <T, V> v) {cerr << "[ "; for (auto i : v) {_print(i); cerr << " ";} cerr << "]";}
-template <class T, class V> void _print(multimap <T, V> v) {cerr << "[ "; for (auto i : v) {_print(i); cerr << " ";} cerr << "]";} 
-template <class T, class V> void _print(unordered_map <T, V> v) {cerr << "[ "; for (auto i : v) {_print(i); cerr << " ";} cerr << "]";}
-/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-
-void solve()
-{
-    int a,b,c,d;
-    cin>>a>>b>>c>>d;
-    if(b>d || c-a>d-b)
-    	neg1;
-    else
-    	cout<<2*(d-b)+a-c<<endl;
-}
-
-int32_t main()
-{
-    FAST_IO;
-    int TC = 1;
-    cin >> TC;
-    while (TC--) 
-        solve();
+#include<bits/stdc++.h>
+using namespace std;
+
+#define FAST_IO             (ios_base:: sync_with_stdio(false),cin.tie(NULL));
+
+#define int                 long long
+#define ll                  long long
+#define ull                 unsigned long long
+#define endl                '\n'
+#define ff                  first
+#define ss                  second
+#define pb                  push_back
+#define all(x)              x.begin(), x.end()
+#define sz(x)               (int)(x).size()
+
+#define yes                 cout<<"YES"<<endl
+#define no                  cout<<"NO"<<endl
+#define neg1                cout<<-1<<endl
+
+#define PI                  3.141592653589793238
+#define MIN                 INT_MIN
+#define MAX                 INT_MAX
+#define INF                 LONG_LONG_MAX
+#define MOD                 1000000007
+#define LLM                 1000000000000000007
+
+ll factorial(ll n)              { if(n==0) return 1; ll res = 1; for (ll i = 2; i <= n; i++) res = res * i; return res; }
+ll nPr(ll n, ll r)              { return factorial(n) / factorial(n - r); }
+ll nCr(ll n, ll r)              { return factorial(n) / (factorial(r) * factorial(n - r));}
+ll gcd(ll a, ll b)              { if (b == 0) return a; return gcd(b, a % b); }
+ll lcm(ll a, ll b)              { return (a * b) / gcd(a, b);}
+ull mypow(ull a, ull b)         { ull ans = 1; a%=MOD; while(b){ if (b&1) ans = (ans*a) % MOD; a = (a*a) % MOD; b >>= 1; } return ans; }
+bool isPrime(ll n)              { if(n <= 1) return false; for(ll i = 2; i*i <= n; i++) if(n % i == 0) return false; return true; }
+
+#ifndef ONLINE_JUDGE
+#define dbg(x) cerr << #x <<" "; _print(x); cerr << endl;
+#define dbgin(x) cerr << #x <<" "; _print(x); cerr << ";"<<endl;
+#else
+#define dbg(x)
+#define dbgin(x)
+#endif
+
+void _print(int t) {cerr << t;}void _print(string t) {cerr << t;}void _print(char t) {cerr << t;}
+void _print(long double t) {cerr << t;}void _print(double t) {cerr << t;}void _print(unsigned ll t) {cerr << t;}
+template <class T, class V> void _print(pair <T, V> p);
+template <class T> void _print(vector <T> v);template <class T> void _print(set <T> v);
+template <class T, class V> void _print(map <T, V> v);template <class T> void _print(multiset <T> v);
+template <class T, class V> void _print(pair <T, V> p) {cerr << "{"; _print(p.first); cerr << ","; _print(p.second); cerr << "}";}
+template <class T> void _print(vector <T> v) {cerr << "[ "; for (T i : v) {_print(i); cerr << " ";} cerr << "]";}
+template <class T> void _print(set <T> v) {cerr << "[ "; for (T i : v) {_print(i); cerr << " ";} cerr << "]";}
+template <class T> void _print(multiset <T> v) {cerr << "[ "; for (T i : v) {_print(i); cerr << " ";} cerr << "]";}
+template <class T> void _print(unordered_set <T> v) {cerr<<"[ "; for(T i : v) {_print(i); cerr<<" ";} cerr<<"]";}
+template <class T, class V> void _print(map <T, V> v) {cerr << "[ "; for (auto i : v) {_print(i); cerr << " ";} cerr << "]";}
+template <class T, class V> void _print(multimap <T, V> v) {cerr << "[ "; for (auto i : v) {_print(i); cerr << " ";} cerr << "]";} 
+template <class T, class V> void _print(unordered_map <T, V> v) {cerr << "[ "; for (auto i : v) {_print(i); cerr << " ";} cerr << "]";}
+/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+void solve()
+{
+    int a,b,c,d;
+    cin>>a>>b>>c>>d;
+    if(b>d || c-a>d-b)
+    	neg1;
+    else
+    	cout<<2*(d-b)+a-c<<endl;
+}
+
+int32_t main()
+{
+    FAST_IO;
+    int TC = 1;
+    cin >> TC;
+    while (TC--) 
+        solve();
 }
\ No newline at end of file