#include <stdio.h>
#include <stdint.h>
 
int main() {
  uint32_t vec[6][3] = {
      {10, 11, 12},
      {20, 21, 22},
      {30, 31, 32},
      {40, 41, 42},
      {50, 51, 52},
      {60, 61, 62},
  };
  int i=0, j=0;
  for(auto it: vec[1]) {
    fprintf(stdout, "%u\n", it);
  }
  return 0;
}