Lower And Upper Case

//Developed By Muhammad Rakib Hasan 2279
//Lower And Upper Case


#include<stdio.h>

int main(){

char a;
printf("Please Enter a Case :");
scanf("%c",&a);

if(a>='A'&& a<='Z'){
printf("%c is Upper case. ",a);
}
else if(a>='a'&& a<='z'){
printf("%c is Lower case. ",a);
}
else{
printf("Please Enter a Valid input ! ");
}
return 0;
}

Result :