https://www.pbinfo.ro/probleme/3620/cmmk

#include <iostream>

using namespace std;

int main()

{

   int n,k,ok=0;

   cin>>n>>k;

   while (n>0)

   {

       if (n%10>k) ok++;

       n=n/10;

   }

   if (ok==0) cout<<"DA";

         else cout<<"NU";

   return 0;

}