c program to change small letter to capital letter

                          C PROGRAM TO CHANGE SMALL LETTER TO CAPITAL LETTER

#include<stdio.h>
int main()
{

    char letter;

    printf("Enter a small letter: \n");
    scanf("%c",&letter);
    printf("Capital version is: %c\n",letter-32);

    return 0;
}
COMPILE AND SEE RESULT