#komentarz
# print("Hello world!") #string
#
# number = 3
# number_str = '3'
#
# print('3')
# print(3)
# print(type(3))
# print(type('3'))
# print(type(3.14))
# print(0.1 + 0.1 + 0.1)
# print(True)
# print(type(None))
# print(type(False))

# number = number + 1
# print(number)
#
# hello = "Hello"
# world = " world"
# ex = "!"
#
#
# sign = hello + " " + world + ex
# print(sign)
#
# name = input("Jak masz na imię? ")
# name = name
# name = name.capitalize()
# name = name.upper()

#print(hello.upper() + " " + name + ex.lower())

#number = '3'
#print(number.isnumeric()) # czy number jest liczbą

# greeting = hello.upper() + " " + name + ex.upper()
# print(greeting)
# print(len(greeting))
# print(greeting[12]) # wywołuje w zdaniu greeting wyrazy od 1 do 7, gdzie 1 to 0


sentence = "Ala ma kota"
print("ala" in sentence)
print(type(sentence) is float)

print(True and False)

birthyear = "1990"
birthyear = int(birthyear)
print(birthyear)

print(type(str(6)))
