Submission #890139

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Source Code Expand

#include <bits/stdc++.h>
using namespace std;
const int dx[]={1,0,-1,0,1,-1,-1,1};
const int dy[]={0,1,0,-1,1,1,-1,-1};
const int INF = 1e9;
const long long LINF = 1e18;
const double EPS = 1e-8;
#define pb push_back
#define mk make_pair
#define fr first
#define sc second
#define ll long long
#define reps(i,j,k) for(int i = (j); i < (k); ++i)
#define rep(i,j) reps(i,0,j)
#define all(a) (a).begin(),(a).end()
#define MOD 1000000007
typedef pair<int,int> Pii;
typedef vector<int> vi;
typedef pair<string, int> Psi;
typedef pair<ll, ll> Pll;
int main(){

	string a;
	cin >> a;
	rep(i,a.size()){
		cout << a[i];
		if(i == 3){
			cout << " ";
		}
	}

	return 0;
}

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