# include<iostream> # include<cstring> using namespace std; int main(){ string s1,s2; string s3; cin>>s1>>s2; int n=s2.size(); for(int i=0;i<s1.size()-n;i++){ for(int j=i;j<=i+n;j++){ s3=s3+s1[j]; for(int k=0;k<n;i++){ if(s2[k]!=s3[k]){ s3=""; break; } cout<<"yes"<<endl; return 0; } } } cout<<"no"<<endl; return 0; }