rt
#include<iostream>
#include<cstdio>
#include<cstring>
#include<cmath>
#include<vector>
#include<queue>
using namespace std;
const int maxn=1e3+5;
struct edge{
int v,w;
};
vector<edge>e[maxn];
int n,m;
int dis[maxn],cnt[maxn];
bool vis[maxn];
queue<int>q;
bool spfa(int s){
memset(dis,0x3f3f3f3f,sizeof(dis));
dis[s]=0,vis[s]=1;
q.push(s);
while(!q.empty()){
int u=q.front();
q.pop(),vis[u]=0;
if(u==n){
continue;
}
for(auto ed:e[u]){
int v=ed.v,w=ed.w;
if(dis[v]>dis[u]+w){
dis[v]=dis[u]+w;
cnt[v]=cnt[u]+1;
if(cnt[v]>=n){
printf("Forever love");
exit(0);
}
if(!vis[v]){
q.push(v);
vis[v]=1;
}
}
}
}
return true;
}
int main()
{
scanf("%d%d",&n,&m);
while(m--){
int s,t,w;
scanf("%d%d%d",&s,&t,&w);
e[s].push_back({t,w*(-1)});
}
spfa(1);
int ans=dis[n];
while(!q.empty()){
q.pop();
}
memset(vis,0,sizeof(vis));
memset(cnt,0,sizeof(cnt));
spfa(n);
printf("%d",min(ans,dis[1]));
}