#include<bits/stdc++.h>
#define INF 2000000000
using namespace std;
int n,m;
long long v[10005],x,y,d;
long long cmmmdc(long long a,long long b)
{
    long long r=a%b;
    while(r)
    {
        a=b;b=r;
        r=a%b;
    }
    if(!b) return 1;
    return b;
}
long long cmmmc(long long a,long long b)
{
    long long c=0;
    long long p=cmmmdc(a,b);
    c=a/p;
    if(c>(INF/b)) return -1;
    c=c*b;
    return c;
}
int main()
{
    freopen("oz.in","r",stdin);
    freopen("oz.out","w",stdout);
    scanf("%d%d",&n,&m);
    for(int i=1;i<=n;i++) v[i]=1;
    for(int i=1;i<=m;i++)
    {
        scanf("%lld%lld%lld",&x,&y,&d);
        v[x]=cmmmc(v[x],d);
        v[y]=cmmmc(v[y],d);
        if(v[x]==-1 || v[y]==-1 || v[x]>INF || v[y]>INF)
        {
            printf("-1\n");
            return 0;
        }
    }
    for(int i=1;i<=n;i++) printf("%lld ",v[i]);
    printf("\n");
    return 0;
}