#include <bits/stdc++.h>
using namespace std;
int main() {
	string S;cin>>S;
	if (S.at(0)=='-')cout<<0<<endl;
	else if (S.size()<=2)cout<<0<<endl;
	else for(long long i=0;i<S.size()-2;i++){cout<<S.at(i)<<endl;}
}