#include <bits/stdc++.h>
using namespace std;
void no()
{
    cout<<"Infinity";
    exit(0);
}
typedef long long ll;
struct point {
    ll x,y;
    point operator-(point a)const{return {x-a.x,y-a.y};}
    ll operator*(point a)const{return {x*a.y-y*a.x};}
};
int main()
{
    int n;cin>>n;
    vector<point> a(n);
    vector<char> c(n);
    for(int i=0;i<n;i++)cin>>a[i].x>>a[i].y>>c[i];
    for(int i=0;i<n;i++){
        for(int j=i+1;j<n;j++){
            for(int k=j+1;k<n;k++){
                if((a[j]-a[i])*(a[k]-a[i])!=0){
                    if(c[i]==c[j]||c[j]==c[k]||c[i]==c[k])no();
                }
            }
        }
    }
    for(int i=0;i<n;i++){
        for(int j=i+1;j<n;j++)if(c[i]==c[j]){
            cout<<2;return 0;
        }
    }
    cout<<1;
}