#include<stdio.h>

 void month_day(int year,int yearday,int *pmonth,int *pday);

 int main() {

     int day,month,year,yearday;

     printf("input year and yearday:");

     scanf("%d%d",&year,&yearday);

     month_day(year,yearday,&month,&day);

     printf("%d-%d-%d\n",year,month,day);

     return ;

 }

 void month_day(int year,int yearday,int *pmonth,int *pday) {

     int k,leap;

     int tab[][]= {

         {,,,,,,,,,,,,},

         {,,,,,,,,,,,,},

     };

     leap = (year%== && year%!=)||year%==;

     for(k=; yearday>tab[leap][k]; k++)

         yearday-=tab[leap][k];

     *pmonth=k;

     *pday=yearday;

 }