#include<iostream>
#include<string>
using namespace std;
int main()
{
string s;
cin>>s;
cout<<s.at(2)<<endl;
}
#include<iostream>
#include<string>
using namespace std;
int main()
{
string s;
cin>>s;
cout<<s.at(2)<<endl;
}
转载于:https://www.cnblogs.com/xlqtlhx/p/6104575.html