#include <stdio.h>
int modu(int A,int n,int p){
    int i=0,temp=1;
    if (n==0)
        if(A!=0)
            return 1;
        else
            return -1;
    if (!(A%p))
        return 0;
    if (A>p)
        return modu(A%p,n,p);
    else{
        if (n%2){
            if (n-1>=2){
                return modu(((A*A)%p)*A,
(n-1)/2,p);
            }else{
                return A%p;
            }
        }else{
            if (n>=2){
                return modu((A*A)%
p,n/2,p);
            }else{
                return A%p;
            }
        }
    }
}
int main(){
    int A=0,M,n,p;
    char k=0;
    scanf("%d %d %d",&n,&M,&p);
    for (A=0;A<M;A++){
        if (modu(A,n,M)==p){
            k++;
            if(k>1)
                printf(" ");
            printf("%d",A);
        }
    }
    if (!k)
        printf("-1");
    return 0;
}

Stupid source. How did you make it so big?