#include <iostream> #include<cstring> using namespace std; int main() { char a[1001],b[1001]; int sum1 = 0,sum2 = 0; cin >> a >> b; while(a[sum1] != '\0') sum1++; while(b[sum2] != '\0') sum2++; if(sum1 == sum2) cout << "yes" << endl; else cout << "no" << endl; }