#include <stdio.h>

int prestupna(int g){
	if(g%400==0)
		return 1;
	else if(g%100==0)
		return 0;
	else if(g%4==0)
		return 1;
	else
		return 0;
	/* return ((g%4==0 && g%100!=0) || (g%400==0)); 
*/
}

int brojDana(int g, int m){
	int d;
	switch(m){
		case 4:
		case 6:
		case 9:
		case 11:
			d = 30;
			break;
		case 2:
			if(prestupna(g))
				d=29;
			else
				d=28;	
			break;
		default:
			d=31;	
	}
	return d;
}

int main(){
	int g,m,dana;
	scanf("%d",&g);
	scanf("%d",&m);
	printf("Broj dana je %d\n",brojDana(g,m));
	return 0;
}