#include<bits/stdc++.h> using namespace std; int main() { int a, b, c, d; cin >> a >> b >> c >> d; for (int i = d + 1; i <= d + 21252; ++i) { if ((i % 23 == a % 23) && (i % 28 == b % 28) && (i % 33 == c % 33)) { cout << "the next triple peak occurs in " << i - d << " days."; break; } } return 0; }