#include <stdio.h>
#include <time.h>

#define A_DAY_SECONDS 24 * 60 * 60

int main(void){
  struct tm data, *local;
  time_t time;
  int i, happy_day = 0,
      mon, day_l, day_r;

  /* 初期化 */
  data.tm_sec = 0;
  data.tm_min = 0;
  data.tm_hour = 0;
  data.tm_mday = 1;
  data.tm_mon = 0;
  data.tm_year = 2015 - 1900;

  time = mktime(&data);
  for(i = 0; i < 365; i++){
    local = localtime(&time);
    mon = local->tm_mon + 1;
    day_l = (int)local->tm_mday / 10;
    day_r = (int)local->tm_mday % 10;
    if(mon == (day_l + day_r)){
      happy_day++;
    }
    time += A_DAY_SECONDS;
  }
  printf("%d\n", happy_day);

  return 0;
}