#include <iostream>
using namespace std;
double funktion(double);
double funcshn(double);
int main(){
int i = 0;
double x = 0;
for (i = 0; i < 10; i++){
x = x + funktion(x);
}
cout << x;
}
double funcshn(double *y){
return (*y)+10;
}
double funktion(double x){
double y = 10;
return x + funcshn(&y);
}
I2luY2x1ZGUgPGlvc3RyZWFtPgp1c2luZyBuYW1lc3BhY2Ugc3RkOwoKZG91YmxlIGZ1bmt0aW9uKGRvdWJsZSk7CmRvdWJsZSBmdW5jc2huKGRvdWJsZSk7CiAKaW50IG1haW4oKXsKICAgIGludCBpID0gMDsKICAgIGRvdWJsZSB4ID0gMDsKICAgIGZvciAoaSA9IDA7IGkgPCAxMDsgaSsrKXsKICAgICAgICB4ID0geCArIGZ1bmt0aW9uKHgpOwogICAgfQogICAgY291dCA8PCB4Owp9CiAKZG91YmxlIGZ1bmNzaG4oZG91YmxlICp5KXsKICAgIHJldHVybiAoKnkpKzEwOwp9Cgpkb3VibGUgZnVua3Rpb24oZG91YmxlIHgpewogICAgZG91YmxlIHkgPSAxMDsKICAgIHJldHVybiB4ICsgZnVuY3NobigmeSk7Cn0=