In [13]:

    

def is_leap_year(year):
    return (year % 4 == 0 and year % 100 != 0) or year % 400 == 0

def calendar(month, day):
    common_year = [31, 28 + int(is_leap_year(2016)), 31, 30, 31, 30, 31, 31, 30, 31, 30, 31]
    date_list = ["thurs", "fri", "satur", "sun","mon","tues","wednes"]
    
    changed_day = {}
    for i in range(7):
        changed_day[i] = date_list[i] + "day"
        
    temp_day = 0
    
    if is_leap_year(2016):
        for i in range(month-1):
            temp_day += common_year[i]
    else:
        for i in range(month-1):
            temp_day += common_year[i]
            
    temp_day += day
    return changed_day[temp_day % 7]

calendar( 5, 10)


    

    
Out[13]:





'tuesday'