#include <stdio.h>

char c;

int main(void) {
    c='A';
    printf("%c\n", c); 
    c=c+1;
    printf("%c\n", c);
    c=c+1;
    printf("%c\n", c);
    c=c+1;
    printf("%c\n", c);
    c=c+1;
    printf("%c\n", c);
    c=c+1;
    printf("%c\n", c);
}