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#include <iostream> using namespace std; int main() { unsigned long long A = 0; cin >> A; int b = 0; if (A >= 15) { A /= 10; b = A + 1; A *= b; cout << A << 25; } else { A *= A; cout << A; } }
#include <iostream> using namespace std; int main() { unsigned long long A = 0; cin >> A; int b = 0; if (A >= 15) { A /= 10; b = A + 1; A *= b; cout << A << 25; } else { A *= A; cout << A; } }