find error in this as it is not running

#include<stdio.h>

int main()

{

int i=2, j=0;

{

    int i=4, j=5;

    printf("%d %d", i, j);

}

printf("%d %d", i, j);

return 0;

}

First of all, for which question this code has been made, you haven’t specified that.
Secondly, why have you used these braces, I don’t see any loop or any if-else kind of thing in your code:

And last but not the least, your code is not at all readable, what are you trying to solve with this, is completely clueless!