#include <iostream>
#include <stdio.h>
#include <math.h>

using namespace std;

int main (){
    double n;
    float y,x;
    cout<<"vvedite x";
    cin>>x;
    do {
    y=pow(n*n+1,1/7.0 == 0);
    cout<<("koren' = ")<<y;
}
while () ;
return 0;
}