Add files via upload

commit for the sol of 271A.cpp

Author: sidoncode

271A.cpp

@@ -0,0 +1,30 @@
+#include<bits/stdc++.h>
+
+using namespace std;
+
+int main(){
+
+    int x;
+
+    cin>>x;
+
+    while (1){
+        int x  = x+1;
+
+        int a = x/1000;
+        int b = x/100 % 10;
+        int c = x/10 % 10;
+        int d = x%10;
+
+        if(a != b && a!=c && a!=d && b!=c && b!=d && c!=d){
+
+            break;
+        }
+        
+    }
+
+    cout<<x<<"\n";
+    
+
+    return 0;
+}