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- #include <iostream>
- using namespace std;
- int main()
- {
- int n;
- cin >> n;
- if(n % 4 == 0) {
- cout << 0 << endl; // we do not have to buy any more apples to split them equally between our nephews
- }
- else if((n + 1) % 4 == 0) {
- cout << 9 << endl; // we have to buy 1 apple with the cost of 9MKD to have apples which we can split between our nephews
- }
- else if((n + 2) % 4 == 0) {
- cout << 18 << endl; // we have to buy 2 apples with the cost of 18MKD to have apples which we can split between our nephews
- }
- else if((n + 3) % 4 == 0) {
- cout << 27 << endl; // we have to buy 3 more apples with the cost of 27MKD to have apples which can split between our nephews
- }
- return 0;
- }
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