Problem:
Finding Missing Cards

Taro is going to play a card game. However, now he has only n cards, even though there should be 52 cards (he has no Jokers).

The 52 cards include 13 ranks of each of the four suits: spade, heart, club and diamond.

Input

In the first line, the number of cards n (n ≤ 52) is given.

In the following n lines, data of the n cards are given. Each card is given by a pair of a character and an integer which represent its suit and rank respectively. A suit is represented by 'S', 'H', 'C' and 'D' for spades, hearts, clubs and diamonds respectively. A rank is represented by an integer from 1 to 13.

Output

Print the missing cards. The same as the input format, each card should be printed with a character and an integer separated by a space character in a line.
Arrange the missing cards in the following priorities:

Print cards of spades, hearts, clubs and diamonds in this order.

If the suits are equal, print cards with lower ranks first.

Sample Input

47
S 10
S 11
S 12
S 13
H 1
H 2
S 6
S 7
S 8
S 9
H 6
H 8
H 9
H 10
H 11
H 4
H 5
S 2
S 3
S 4
S 5
H 12
H 13
C 1
C 2
D 1
D 2
D 3
D 4
D 5
D 6
D 7
C 3
C 4
C 5
C 6
C 7
C 8
C 9
C 10
C 11
C 13
D 9
D 10
D 11
D 12
D 13

Sample Output

S 1
H 3
H 7
C 12
D 8

Note

      解説

Solution in C (judge verdict: Time Limit Exceeded)

#include <stdio.h>

int main(int argc, const char * argv[]) {
    int rank, n, card[4][13], i, j;
    char mark;
    scanf("%d",&n);
    
    while(n>=1){
        scanf("%c %d",&mark,&rank);
        
        if( mark == 'S'){
            card[0][rank] = 1;
        }
        else if( mark == 'H'){
            card[1][rank] = 1;
        }
        else if( mark == 'C'){
            card[2][rank] = 1;
        }
        else if( mark == 'D'){
            card[3][rank] = 1;
        }
    }
    
    for( i = 0 ; i < 4 ; i++ ){
        for( j = 0 ; j < 13 ; j++ ){
            if( card[i][j] != 1 ){
                switch(i){
                    case 0:
                        printf("S %d\n",j);
                        break;
                    case 1:
                        printf("H %d\n",j);
                        break;
                    case 2:
                        printf("C %d\n",j);
                        break;
                    case 3:
                        printf("D %d\n",j);
                        break;
                    default:
                        break;
                }
            }
        }
    }
    
    return 0;
}