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/*
s/y + (s-z)/x = s/x + t + z /y
s/30 + (s-480)/20 = s /20 + 30 + 480/30
s/30 +s/20- 24 =s /20 + 30 + 16
s/30 = 24 + 30 + 16
s=30*(70)=2100
*/
#include <bits/stdc++.h>
using namespace std;
int main() {
return 0;
}