# 得到年份和月份 
year = int(input())
month = int(input())

# 判断是不是闰年
run_year = False
if year % 100 == 0:
    if year % 400 ==0:
        run_year = True
elif year % 4 == 0:
    run_year = True
    
# 得到天数和月份的关系    
day = [31,28,31,30,31,30,31,31,30,31,30,31]
if run_year == True:
    day[1] = 29
print(day[month-1])