#include <stdio.h>

int x = 23;

int main(void) {
   printf("%d\n", x);
   int x = 42;
   printf("%d\n", x);

   for (int x = 0; x < 5; x++) {
      printf("%d\n", x);
   }
   printf("%d\n", x);

   if (1) {
      int x = 371;
      printf("%d\n", x);
      {
         int x = 55112;
         printf("%d\n", x);
      }
      printf("%d\n", x);
   }
   printf("%d\n", x);

   return 0;
}