[python] What does print(... sep='', '\t' ) mean?

sep='' ignore whiteSpace. see the code to understand.Without sep=''

from itertools import permutations
s,k = input().split()
for i in list(permutations(sorted(s), int(k))):
    print(*i)

output:

HACK 2
A C
A H
A K
C A
C H
C K
H A
H C
H K
K A
K C
K H

using sep='' The code and output.

from itertools import permutations
s,k = input().split()
for i in list(permutations(sorted(s), int(k))):
    print(*i,sep='')

output:

HACK 2
AC
AH
AK
CA
CH
CK
HA
HC
HK
KA
KC
KH

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