#include <stdio.h>

#include <string.h>

#include <stdlib.h>

#include <fcntl.h>

char flag[];

char password[];

char* key = "3\rG[S/%\x1c\x1d#0?\rIS\x0f\x1c\x1d\x18;,4\x1b\x00\x1bp;5\x0b\x1b\x08\x45+";

void calc_flag(char* s){

    int i;

    for(i=; i<strlen(s); i++){

        flag[i] = s[i] ^ key[i];

    }

    printf("%s\n", flag);

}

int main(){

    FILE* fp = fopen("/home/blukat/password", "r");

    fgets(password, , fp);

    char buf[];

    printf("guess the password!\n");

    fgets(buf, , stdin);

    if(!strcmp(password, buf)){

        printf("congrats! here is your flag: ");

        calc_flag(password);

    }

    else{

        printf("wrong guess!\n");

        exit();

    }

    return ;

}