void FRadical(int n, int &x, int &y)
{
    x = 1;
    y = 1;
    int d = 2, p;
    while(n != 1) {
        p = 0;
        while(n%d == 0)
            n/=d, p++;
        if(p) {
            if(p%2 == 0) {
                for(int k = 1; k <= p/2; k++) x*=d;
            }
            else {
                for(int k = 1; k <= (p-1)/2; k++) x*=d;
                y*=d;
            }
        }
        d++;
    }
}