Read keyboard input

The first way: 
Import SYS 
sys.stdout.write ( "Please enter: \ the n-") 
the while True: 
    Line = sys.stdin.readline () 
    IF Line == "\ the n-": 
        BREAK 
    the else: 
        Print (Line) 

first two ways:

SYS Import 
s_line = sys.stdin.readline () 
i_line = INPUT () 
Print (len (s_line)) 
Print (len (i_line)) 
# Note sys.stdin. readline (), after all the input acquisition, at the end add "\ n, input will" \ n "Ignore