Switch (Personal Code)

#include <stdio.h>
#include <conio.h>

int main (void){
    int letter;
    int finish = 0;

    while (!finish){
//  scanf("%c", &letter);
    letter = getch();


        switch (letter){
            case 'K':
            case 'k':
                printf("King amongst people\n");
            break;

            case 'M':
            case 'm':
                printf("Martyr of Worlds\n");
            break;

            case 13:
                printf("You pressed enter!\n");
                break;

            case 74:
                    letter = getch();

                    switch(letter){
                    case 72:
                    printf("ARROW UP\n");
                    break;
                    case 75:
                    printf("ARROW LEFT\n");
                    break;
                    case 77:
                    printf("ARROW RIGHT\n");
                    break;
                    case 80:
                    printf("ARROW DOWN\n");
                    break;

                    default:
                    printf("%d\n", letter);
            }
            break;

            case 'X':
            case 'x':
                finish = 1;
                break;

            default:
            //  printf("Through out heaven and earth, I alone, am the honored onen");
                printf("%d\n", letter);
                break;
        }
    }
    return 0;
}