Submission #1138984

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Source Code Expand

#define _USE_MATH_DEFINES
#define _CRT_SECURE_NO_WARNINGS
#include<stdio.h>
#include<string>
#include<iostream>
#include<cctype>
#include<cstdio>
#include<vector>
#include<stack>
#include<queue>
#include <algorithm>
#include<math.h>
#include<set>
#include<map>
#include<iomanip>

//#include<bits/stdc++.h>


using namespace std;


int main() {

	string p;
	cin >> p;
	for (int i = 0; i < p.size(); i++) {
		cout << p[i];
		if (i == 3)cout << " ";
	}
	cout << endl;


	return 0;

}

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