3.5

number = 12

months = ['Jan','Feb','March','Apr','May','Jun','July','Aug','Sep','Oct','Nov','Dec']
days = ['31','28','31','30','31','30','31','31','30','31','30','31']

if number < 1 or number > 12:
    print("Please input again: ")
else:
    for i in range(len(months)):
        if number == i:
            print('Number:',number,'   ','With:',months[i-1],'and',days[i-1], 'days.')
        break
    if number == 12:
        print('Number:',number,'   ','With:',months[11],'and',days[11], 'days.')