diff --git a/1721B Deadly Laser/1721B.cpp b/1721B Deadly Laser/1721B.cpp
new file mode 100644
index 0000000..2e8c472
--- /dev/null
+++ b/1721B Deadly Laser/1721B.cpp	
@@ -0,0 +1,27 @@
+#include <bits/stdc++.h>
+using namespace std;
+
+void solve()
+{
+    int n, m, s1, s2, d;
+    cin >> n >> m >> s1 >> s2 >> d;
+    bool pass=true;
+    if (s1+d>=n && s2+d>=m) pass=false;
+    else if (s1-d<=1 && s2-d<=1) pass=false;
+    else if (s1+d>=n && s1-d<=1) pass=false;
+    else if(s2+d>=m && s2-d<=1) pass=false;
+    if(pass) cout<<n+m-2<<endl;
+    else cout<<"-1"<<endl;
+}
+
+int main()
+{
+    ios_base::sync_with_stdio(false);
+    cin.tie(nullptr);
+
+    int TC = 1;
+    cin >> TC;
+    cin.ignore();
+    while (TC--)
+        solve();
+}
\ No newline at end of file