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def gcd(a, b):
while b != 0:
a, b = b, a % b
return a
if __name__ == '__main__':
for line in open('gcd_testcases.dat'):
values = line.split(', ')
a = int(values[0])
b = int(values[1])
g = int(values[2])
tc = gcd(a, b)
if tc != g:
print "Test failed for the case a=%d and b=%d. Expected %d. Obtained %d instead." % (a, b, g, tc)
exit(1)
print "All tests passed!"
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