month = {'January':31, 'February':28, 'March':31, 'April':30, 'May':31, 'June':30, 'July':31, 'August':31, 
'September':30, 'October':31, 'November':30, 'December':31}

# 1
# d = input('Enter the month: ')
# print(d + ": " + str(month[d]))

# 2
# mon = []
# for m in month:
#     mon.append(m)
# mon.sort()
# print(mon)

# 3
# for m in month:
#     if month[m] == 31:
#         print(m)

# 4 ne sdelal

# 5
# mon = input('enter fisrt 3 letters of month: ')
# for m in month:
#     if mon in m:
#         print(month[m])

