Write a word in both Upper Case and Lower Case

C Program

#include <stdio.h>
#include <stdlib.h>
int main()
{
    char Str[10];
    printf("Enter any Word: ");
    scanf("%s",&Str);
    printf("Word: %s\n",&Str);
    printf("UPPERCASE: %s \n", strupr(Str));
    printf("lowercase: %s ", strlwr(Str));
}

Python Program

S = input("Enter a sentence: ")
print("Lower case: " + S.lower())
print("Upper case: " + S.upper() )