#include <stdio.h>
#include<ctype.h>
int main()
{
    int input;
    int valid = 2; // 2 for unused value // valid is the checking of string
    int count = 0;
    printf("Enter the decimal input :");
    scanf("%d",&input);
    if (input)
    {

        if (input % 2 == 0)
        {
            valid = 1;
        }
        else
        {
            valid = 0;
        }
    }
    else
    {
        printf("Your inputs should be atleast 3.");
    }
    switch (valid)
    {
        case 1:
        {
            printf("Congrats, Your string is valid \n");
            break;
        }
        case 0:
        {
            printf("Your string is not valid\n");
            break;
        }
    }
    return 0;
}