#include <iostream>
using namespace std;
double funcshn(double&);
int main(){
int i = 0;
double x = 0;
double y = 10;
for (i = 0; i < 10; i++){
x = x + funcshn(y);
}
cout << x;
}
double funcshn(double &y){
return y+10;
}
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