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(void) 
{
    int n, i, j, a, cards[4][13] = { {0} };
    char egara, egara2[5] = "SHCD";

    scanf("%d", &n);

    for (i = 0;i < n;i++)
    {
        scanf("%c %d", &egara, &a);

        for (j = 0;i < 4;j++)
        {
            if (egara2[j] == egara)
            {
                cards[j][a - 1] = 0;
            }
        }
    }

    for (i = 0;i < 4;i++)
    {
        for (j = 0;j < 13;j++)
        {
            if (cards[i][j] == 1)
            {
                printf("%c %d\n", egara2[i], j + 1);
            }
        }
    }
    return 0;    
}