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()
{
    char buffer[6];
    int i, j, n, rank, suit_int;
    char suit_char;
    int cards[4][13]={0};
    fgets(buffer, 3, stdin);
    sscanf(buffer, "%d", &n);
    for(i=0;i<n;i++)
    {
        fgets(buffer, 5, stdin);
        sscanf(buffer, "%c %d", &suit_char,&rank);
        switch(suit_char)
        {
            case 'S':
            suit_int = 0;
            break;
            case 'H':
            suit_int = 1;
            break;
            case 'C':
            suit_int = 2;
            break;
            case 'D':
            suit_int = 3;
            break;
            default:
            fprintf(stderr, "undefined");
            return(1);
        }
        cards[suit_int][rank] = 1;
    }
    for(i=0;i<4;i++)
    {
        suit_int = i;
        for(j=0;j<13;j++)
        {
            if(!cards[suit_int][j])
            {
                switch(suit_int)
                {
                    case 0:
                        suit_char = 'S';
                        break;
                    case 1:
                        suit_char = 'H';
                        break;
                    case 2:
                        suit_char = 'C';
                        break;
                    case 3:
                        suit_char = 'D';
                        break;
                    default:
                        fprintf(stderr, "undefined");
                        return(1);
                }
                printf("%c %d\n", suit_char, j+1);
            }
        }
    }
    
}