diff --git a/271A.cpp b/271A.cpp
new file mode 100644
index 0000000..dec0b30
--- /dev/null
+++ b/271A.cpp
@@ -0,0 +1,24 @@
+#include <iostream>
+
+using namespace std;
+
+int main()
+{
+   int n,i,j,k,l;
+   cin>>n;
+   while(true)
+   {
+       n=n+1;
+       i=n/1000;
+       j=n/100%10;
+       k=n/10%10;
+       l=n%10;\
+       if(i!=j && i!=k && i!=l && j!=k && j!=l && k!=l)
+       {
+           break;
+           
+       }
+   }
+   cout<<n<<endl;
+   return 0;
+}