#include<stdio.h>
int main()
{
	char a[5][10]={"red","yellow","blue","white","block"};
	int i,j,k,m=0;
	for(i=0;i<5;i++){
		for(j=i+1;j<5;j++){
			for(k=j+1;k<5;k++){
				m++;
				printf("%s %s %s\n",a[i],a[j],a[k]); 
			}
		}
	}
	printf("一共%d种。\n",m);
	return 0;
}