Submission #890066

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Source Code Expand

#include <algorithm>
#include <cctype>
#include <cmath>
#include <cstdio>
#include <cstdlib>
#include <functional>
#include <iomanip>
#include <iostream>
#include <map>
#include <numeric>
#include <queue>
#include <set>
#include <string>
#include <unordered_map>
#include <unordered_set>
#include <utility>
#include <vector>

using namespace std;

#define reps(i,f,n) for(int i=f; i<int(n); ++i)
#define rep(i,n) reps(i,0,n)

using ll = long long;
using vi = vector<int>;
using pii = pair<int, int>;

const int INF = 1001001001;

int main()
{
    string s;
    cin >> s;
    cout << s.substr(0, 4) << " " << s.substr(4) << endl;
}

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