#include<iostream> using namespace std; int main(){ string a,b; cin>>a>>b; int lenb=b.size(),frequency=a.size()-lenb; bool d; for(int i=0;i<frequency;i++){ d=1; for(int j=i,k=0;k<lenb;j++,k++){ if(a[j]!=b[k]){ d=0; break; } } if(d){ cout<<"yes"; return 0; } } cout<<"no"; return 0; }