PracticeDayTwoExercises6,7,8,9

#include <stdio.h>
#include <stdlib.h>

//Ex6
int Lower(char sym){
    if(sym >= 'a' && sym <= 'z'){
       printf("Yes");
       return 0;
    }else{
       printf("No");
       return 0;
    }
}

//Ex7
int Upper(char sym){
    if(sym >= 'A' && sym <= 'Z'){
        printf("Yes");
        return 0;
    }else{
        printf("No");
        return 0;
    }
}

//Ex8
int Letter(char sym){
    if(sym >= 'A' && sym <= 'Z')
    {
        printf("Upper");
        return 0;
    }
    else
    {
        printf("Lower");
        return 0;
    }
}

//Ex9
int DigOrLet(char sym){
    if(sym >= '0' && sym <= '9')
     {
        printf("Digit");
        return 0;
    }
    else
    {
        printf("Letter");
        return 0;
    }
}

int main(){
    printf("------------------Exercise6------------------\n");
    printf("%c\n", Lower('6'));
    printf("------------------Exercise7------------------\n");
    printf("%c\n", Upper('V'));
    printf("------------------Exercise8------------------\n");
    printf("%c\n", Letter('a'));
    printf("------------------Exercise9------------------\n");
    printf("%c\n", DigOrLet('5'));
    return 0;
}