Submission #890751

---

Source Code Expand

#include <bits/stdc++.h>
#define FOR(i,a,b) for(int i=(a);i<(b);i++)
#define REP(i,n) for(int i=0;i<(n);i++)
#define RREP(i,n) for(int i=(n)-1;i>=0;i--)
using namespace std;

int main()
{
    string S;
    cin >> S;
    S.insert(4, " ");
    cout << S << endl;
}

Submission Info

Judge Result