22 lines
278 B
Python
22 lines
278 B
Python
|
""" day 1 """
|
||
|
|
|
||
|
|
import fileinput
|
||
|
|
|
||
|
|
left = []
|
||
|
|
right = []
|
||
|
|
|
||
|
|
for line in fileinput.input():
|
||
|
|
a, b = line.split()
|
||
|
|
left.append(int(a))
|
||
|
|
right.append(int(b))
|
||
|
|
|
||
|
|
left = sorted(left)
|
||
|
|
right = sorted(right)
|
||
|
|
|
||
|
|
total = 0
|
||
|
|
|
||
|
|
for a,b in zip(left,right):
|
||
|
|
total += abs(a-b)
|
||
|
|
|
||
|
|
print(total)
|