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<iostream>
using namespace std;

int main(){
  int cards[4][13] = {
    {1,2,3,4,5,6,7,8,9,10,11,12,13},
    {1,2,3,4,5,6,7,8,9,10,11,12,13},
    {1,2,3,4,5,6,7,8,9,10,11,12,13},
    {1,2,3,4,5,6,7,8,9,10,11,12,13}
  };

  int n,rank;
  char mark;
  cin >> n;

  for (int x = 1; x<=n; x++){
    cin >> mark >> rank;

    if( mark == 'S'){
      cards[0][rank] = 0;
    }
    if( mark == 'H'){
      cards[1][rank] = 0;
    }
    if( mark == 'C'){
      cards[2][rank] = 0;
    }
    if( mark == 'D') {
      cards[3][rank] = 0;
    }
  }

  for (int i = 0; i<4; i++){
    for (int j = 1; j<=13; j++){
      if(cards[i][j] == 0){
        continue;
      }

      if (i == 0) mark = 'S';
      if (i == 1) mark = 'H';
      if (i == 2) mark = 'C';
      if (i == 3) mark = 'D';

      cout << mark << " " << rank << endl;
    }
  }

  return 0;
}