#include<bits/stdc++.h> using namespace std; int main() { int s1=0,s2=0; char a,b; cin>>a>>b; while (a[s1]!='\0'){ s1++; } while (a[s2]!='\0'){ s2++; } if(s1>s2){ cout<<s1; }else{ cout<<s2; } return 0; }