#include <iostream>#include <cstdio>using namespace std;typedef struct snow{    int a[6];    snow *next;};snow *s[100000];int fin(int b[],int sum){    snow *p;    p=s[sum]->next;    while(p){        for(int i=0;i<6;i++){            int j;            if(b[i]==p->a[0]){                for(j=1;j<6;j++){                    if(b[i+j]%6!=p->a[j]){                        break;                    }                }                if(j==6){                    return 1;                }                for(j=1;j<6;j++){                    if(b[((i-j%6+6)%6)]!=p->a[j]){                        break;                    }                }                if(j==6){                    return 1;                }            }        }        p=p->next;    }    p=new snow;    for(int i=0;i<6;i++){        p->a[i]=b[i];    }    p->next=s[sum]->next;    s[sum]->next=p;    return 0;}int main(){    int n;    int t;    int b[6];    int sum;    int flag;    scanf("%d",&n);    for(int i=0;i<100000;i++){        s[i]=new snow;        s[i]->next=NULL;    }    while(n--){        scanf("%d",&t);        flag=0;        for(int i=0;i<t;i++){            sum=0;            for(int j=0;j<6;j++){                scanf("%d",&b[j]);                sum+=b[j];            }            sum%=100000;            if(!flag){                if(fin(b,sum)){                    flag=1;                }            }        }        if(flag){            printf("Twin snowflakes found.\n");        }else{            printf("No two snowflakes are alike.\n");        }    }    return 0;}