#include<iostream> using namespace std; int main() { char a[150],b[150] ; cin>>a>>b; int al=0,bl=0,i=0; while (a[i] != '\0') { al++; i++; } while (b[i] != '\0') { bl++; i++; } if (al == bl) { cout << "yes"; } else { cout << "no"; } }