Help me in solving CLB049 problem

My issue

printf(

My code

#include <stdio.h>

int main() {
  char word[] = "Ocygen";
  word[c] = 'x';
  printf("%s", console);
}

Learning course: Programming and Problem solving using C
Problem Link: https://www.codechef.com/learn/course/ciet-programming-c/CIETPC12/problems/CLB049

You have not defined the variable console anywhere.