diff --git a/112A-PetyaAndStrings/112A.cpp b/112A Petya And Strings/112A.cpp
similarity index 100%
rename from 112A-PetyaAndStrings/112A.cpp
rename to 112A Petya And Strings/112A.cpp
diff --git a/158A-NextRound/158A.cpp b/158A Next Round/158A.cpp
similarity index 100%
rename from 158A-NextRound/158A.cpp
rename to 158A Next Round/158A.cpp
diff --git a/1829A Love Story/1829A.cpp b/1829A Love Story/1829A.cpp
new file mode 100644
index 0000000..a95acfe
--- /dev/null
+++ b/1829A Love Story/1829A.cpp	
@@ -0,0 +1,22 @@
+#include <bits/stdc++.h>
+using namespace std;
+
+int main()
+{
+    int i, t, count;
+    cin >> t;
+    while (t--)
+    {
+        string s,c= "codeforces";
+        cin >> s;
+        count = 0;
+        for (i = 0; i < 10; i++)
+        {
+            if (s[i] != c[i])
+            {
+                count++;
+            }
+        }
+        cout << count << endl;
+    }
+}
\ No newline at end of file
diff --git a/1829B Blank Spaces/1829B.cpp b/1829B Blank Spaces/1829B.cpp
new file mode 100644
index 0000000..00fc6f2
--- /dev/null
+++ b/1829B Blank Spaces/1829B.cpp	
@@ -0,0 +1,28 @@
+#include <bits/stdc++.h>
+using namespace std;
+int main()
+{
+    int i, n, t, count, ans;
+    cin >> t;
+    while (t--)
+    {
+        cin >> n;
+        int a[n];
+        ans = 0;
+        count = 0;
+        for (i = 0; i < n; i++)
+        {
+            cin >> a[i];
+            if (a[i] == 0)
+            {
+                count++;
+            }
+            else
+            {
+                ans= max(count,ans);
+                count= 0;
+            }
+        }
+        cout << max(count,ans) << endl;
+    }
+}
\ No newline at end of file
diff --git a/1833C-VladBuildingBeautifulArray/1833C.cpp b/1833C Vlad Building Beautiful Array/1833C.cpp
similarity index 100%
rename from 1833C-VladBuildingBeautifulArray/1833C.cpp
rename to 1833C Vlad Building Beautiful Array/1833C.cpp
diff --git a/1A-Theater Square/1A.cpp b/1A Theater Square/1A.cpp
similarity index 100%
rename from 1A-Theater Square/1A.cpp
rename to 1A Theater Square/1A.cpp
diff --git a/231A-Team/231A.cpp b/231A Team/231A.cpp
similarity index 100%
rename from 231A-Team/231A.cpp
rename to 231A Team/231A.cpp
diff --git a/236A-BoyOrGirl/236A.cpp b/236A Boy Or Girl/236A.cpp
similarity index 100%
rename from 236A-BoyOrGirl/236A.cpp
rename to 236A Boy Or Girl/236A.cpp
diff --git a/263A-BeautifulMatrix/263A.cpp b/263A Beautiful Matrix/263A.cpp
similarity index 100%
rename from 263A-BeautifulMatrix/263A.cpp
rename to 263A Beautiful Matrix/263A.cpp
diff --git a/281A-WordCapitalization/281A.cpp b/281A Word Capitalization/281A.cpp
similarity index 100%
rename from 281A-WordCapitalization/281A.cpp
rename to 281A Word Capitalization/281A.cpp
diff --git a/282A-Bit++/282A.cpp b/282A Bit++/282A.cpp
similarity index 100%
rename from 282A-Bit++/282A.cpp
rename to 282A Bit++/282A.cpp
diff --git a/339A-HelpfulMaths/339A.cpp b/339A Helpful Maths/339A.cpp
similarity index 100%
rename from 339A-HelpfulMaths/339A.cpp
rename to 339A Helpful Maths/339A.cpp
diff --git a/4A-Watermelon/4A.cpp b/4A Watermelon/4A.cpp
similarity index 100%
rename from 4A-Watermelon/4A.cpp
rename to 4A Watermelon/4A.cpp
diff --git a/50A-DominoPiling/50A.cpp b/50A DominoPiling/50A.cpp
similarity index 100%
rename from 50A-DominoPiling/50A.cpp
rename to 50A DominoPiling/50A.cpp
diff --git a/546A Soldier and Bananas/546A.cpp b/546A Soldier and Bananas/546A.cpp
new file mode 100644
index 0000000..6f69ce6
--- /dev/null
+++ b/546A Soldier and Bananas/546A.cpp	
@@ -0,0 +1,15 @@
+#include<bits/stdc++.h>
+using namespace std;
+
+int main()
+{
+    int k,n,w;
+    cin>>k>>n>>w;
+    int i,money=0;
+    for(i=1;i<=w;i++)
+    {
+        money=money+i*k;
+    }
+    if(money>n) cout<<money-n<<endl;
+    else cout<<0<<endl;
+}
\ No newline at end of file
diff --git a/617A-Elephant/617A.cpp b/617A Elephant/617A.cpp
similarity index 100%
rename from 617A-Elephant/617A.cpp
rename to 617A Elephant/617A.cpp
diff --git a/71A-WayTooLongWords/71A.cpp b/71A Way Too Long Words/71A.cpp
similarity index 100%
rename from 71A-WayTooLongWords/71A.cpp
rename to 71A Way Too Long Words/71A.cpp
diff --git a/791A-BearAndBigBrother/791A.cpp b/791A Bear And Big Brother/791A.cpp
similarity index 100%
rename from 791A-BearAndBigBrother/791A.cpp
rename to 791A Bear And Big Brother/791A.cpp