Submission #1813118

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Source Code Expand

#include "iostream"
#include "climits"
#include "list"
#include "queue"
#include "stack"
#include "set"
#include "functional"
#include "algorithm"
#include "string"
#include "map"
#include "iomanip"
#include "cmath"

using namespace std;

const long long int MOD = 1000000007;

long long int N, M, K, H, W, L, R;


int main() {
	ios::sync_with_stdio(false);
	cin.tie(0);

	cin >> N;
	if (((N + 19) / 20) % 2) {
		if (N % 20) {
			cout << N % 20 << endl;
		}
		else {
			cout << 20 << endl;
		}
	}
	else {
		if (N % 20) {
			cout << 21 - N % 20 << endl;
		}
		else {
			cout << 1 << endl;
		}
	}
	return 0;
}

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