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Created Jan 17, 2013
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import sys
def gcd(a, b):
t = b
b = a % b
if b == 0:
return t
return gcd(t, b)
def main(argv):
if (len(sys.argv) != 3):
sys.exit('Usage: <a> <b>')
print abs(gcd(int(sys.argv[1]), int(sys.argv[2])))
if __name__ == "__main__":
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