text: #include <stdio.h>
  #include <stdlib.h>
  
  int main(int argc, char *argv[]) {
      int monthDays[] = {31,29,31,30,31,30,31,31,30,31,30,31};
      int months[] = {1,2,3,4,5,6,7,8,9,10,11,12};
      int i, j;
  
      for(i=0; i<12; i++) {
          for(j=0; j<monthDays[i]; j++)
              printf("%.2d.%.2d.13\n", j+1, months[i]);
      }
  
      return 0;
  }
  