> #include<stdio.h>
> #include<string.h>
> char s1[3][7],s2[3][7],s[3][7];
> 
> int left(int i,char c){
> 	for(int j=0;s1[i][j]!='\0';j++){
> 		if(s1[i][j]==c) return 1;
> 	}
> 	return 0;
> }
> 
> int right(int i,char c){
> 	for(int j=0;s2[i][j]!='\0';j++){
> 		if(s2[i][j]==c) return 1;
> 	}
> 	return 0;
> }
> int light(char c){
> 	for(int i=0;i<3;i++){
> 		switch(s[i][0]){
> 		case 'u':if(!right(i,c)) return 0;
> 			      else break;
> 		case 'e':if(left(i,c)||right(i,c)) return 0;
> 			      else break;
> 		case 'd':if(!left(i,c)) return 0;
> 			      else break;
> 		}
> 	}
> 		return 1;
> 	
> }
> 
> int heavy(char c){
> 	for(int i=0;i<3;i++){
> 		switch(s[i][0]){
> 		case 'u':if(!left(i,c)) return 0;
> 		         else break;
> 		case 'e':if(left(i,c)||right(i,c)) return 0;
> 		         else break;
> 		case 'd':if(!right(i,c)) return 0;
> 		         else break;
> 		}
> 	}
> 		return 1;
> 	
> }	
> void main(){
> 	int n;
> 	scanf("%d",&n);
> 	for(int k=0;k<3;k++){
> 		scanf("%s %s %s",s1[k],s2[k],s[k]);
> 	}
> 	for(char c='A';c<='L';c++){
> 			if(light(c)){
> 				printf("%c is the counterfeit coin and it is light.\n",c);
> 				break;
> 			}
> 			else if(heavy(c)){
> 				printf("%c is the counterfeit coin and it is heavy.\n",c);
> 				break;
> 			}
> 	}
> }
> 		
> 	
> 
> 
> 
> 
> 
> 
> 
> 
>