# include <stdio.h>
int main()
{
int a,b,sum=0,temp=0,i;
scanf("%d %d",&a,&b);
for(i=1;i<a;i++){
if(a%i==0){
sum=sum+i;
}
}
for(i=1;i<b;i++){
if(b%i==0){
temp=temp+i;
}
}
if(sum==a && temp==b){
printf("Friendly Number");
}
else{
printf("Not Friendly Number");
}
}
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