#include<bits/stdc++.h>
using namespace std;
int read(){
    int x=0;bool b=1;char c=getchar();
    while(c<'0'||c>'9')
        c=='-'?b=0:b=1,c=getchar();
    while(c>='0'&&c<='9')
        x=x*10+c-'0',c=getchar();
    return b?x:-x;
}
void write(int x){
    if(x<0)
        putchar('-'),x=-x;
    if(x>9)
        write(x/10);
    putchar(x%10+'0');
    return ;
}
int n;
int main(){
    n=read(),n==1?write(-1):write(n),putchar(' '),write(n+1),putchar(' '),write(n*(n+1)),puts("");
    return 0;
}

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