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i can't find mistake in output

#include <stdio.h>
#include <string.h>
#define N 1000

int tab[N];
int k;

int main ()
{
int x;
char znak;
k=0;
scanf("%d\n",&x);
whhile: while (x--)
{
while((znak=getchar())!='\n' && znak!=EOF)
{
if(znak=='[') tab[k++]=1;
if(znak==']') if(k==0 || tab[--k]==2) {printf("No\n");while((znak ...