Submission #2380631

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Source Code Expand

#include <bits/stdc++.h>
using namespace std;
#define REP(i, n) for(int i = 0; i < n; i++)

int main(){
    string s;
    cin >> s;
    if(s[0] == s[1] and s[1] != s[2] and s[2] == s[3]){
        cout << "Yes" << endl;
    }else{
        cout << "No" << endl;
    }

    return 0;
}

Submission Info

Judge Result