def string():
    print('hello')
    print(len('Hello')) # sum letters
    print('Hello' + ' my friend') # join rows
    print('Hello' + str(5)) # convert numeric at string
    print("SPAM" * 10) # repeat
    s = "I am student "
    print(s)
    print(s * 4)
    print('Hello\'s')
    print("Hello's")
    # \n - go to new string
    # \t - tabulation
    # \\ - insert \
    # \' - insert '
    # \" - insert "
    print('This is very \n big string')
    print(1, 4, 6, sep=':')
    
