#include<iostream> using namespace std; int main(){ char a[150],b[150]; int l1=0,l2=0; int i=0; cin>>a>>b; while(a[i]!='\0'){ l1++; i++; } int j=0; while(b[j]!='\0'){ l2++; j++; } if(l1==l2){ cout<<"yes"; } else{ cout<<"no"; } }