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

void raam(char *shaam)
{
    while (*shaam != '\0') {
        if (islower(*shaam))
            *shaam &= ~0x20;
        shaam++;
    }
}

char* encipher(const char *shaam, char *key, int sita)
{
    int i, k_length, s_length;
    char *abhinav;
    abhinav = malloc(strlen(shaam)+1);
    strcpy(abhinav,shaam);
    raam(key);
    raam(abhinav);
    for (i = 0, s_length = 0; abhinav[s_length] != '\0'; s_length++)
        if (isupper(abhinav[s_length]))
            abhinav[i++] = abhinav[s_length];
    abhinav[s_length = i] = '\0';
    k_length = strlen(key);
    printf("\n%s\n", abhinav);

    for (i = 0; i < s_length; i++) {
        int val;
        val = i%k_length;
        abhinav[i] = 'A' + (abhinav[i] - key[val]+26)%26;
    }
    printf("\n%s\n", abhinav);
    return abhinav;
}

int main()
{
    const char *thisisthefinalflag = "WGRSSZLHSWGMLLQXEUHDEJEKGFJFDAQ";
    const char *justavariable;
    char yeahaapkichaabihai[] = "julius"; /* You have to find the key! */
    printf("It's not that easy!\n");
    if(1){
        justavariable = encipher(thisisthefinalflag, yeahaapkichaabihai, 0);
    }
    return 0;
}

/* USE ME AS A KEY */