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#! /usr/bin/python3
def concat(a0, b0):
if b0 == 0:
return 10 * a0
a = a0
b = b0
while b > 0:
a *= 10
b = int(b / 10)
return a + b0
def concatenationvalue(a):
t = 0
for i in range(int((len(a) - 1)/2) + 1):
j = len(a) - 1 - i
if j == i:
t += a[i]
else:
t += concat(a[i], a[j])
return t
import unittest
class TestConcatenationvalue(unittest.TestCase):
def test_ex1(self):
self.assertEqual(concatenationvalue([6, 12, 25, 1]), 1286, 'example 1')
def test_ex2(self):
self.assertEqual(concatenationvalue([10, 7, 31, 5, 2, 2]), 489, 'example 2')
def test_ex3(self):
self.assertEqual(concatenationvalue([1, 2, 10]), 112, 'example 3')
unittest.main()
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