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AoC2020
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06-1-1.py
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print
(
sum
(
map
(
lambda
x
:
len
(
set
(
x
)
-
set
(
'
\n
'
)
)
,
open
(
0
)
.
read
(
)
.
split
(
'
\n
'
*
2
)
)
)
)
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