# vim: set expandtab ts=4 sw=4:
#
# Copyright (c) 2011, EPFL (Ecole Politechnique Federale de Lausanne)
# All rights reserved.
#
# Created by Marco Canini, Daniele Venzano, Dejan Kostic, Jennifer Rexford
# To this file contributed: Peter Peresini
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
#   -  Redistributions of source code must retain the above copyright notice,
#      this list of conditions and the following disclaimer.
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#      this list of conditions and the following disclaimer in the documentation
#      and/or other materials provided with the distribution.
#   -  Neither the names of the contributors, nor their associated universities or
#      organizations may be used to endorse or promote products derived from this
#      software without specific prior written permission.
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def expressions(in1, in2):
    a = in1
    b = in2 + 47
    c = a * b
    # only solution should be a==1, b==6
    if c == 583 and a > 0 and a < 20:
        d = -1
    else:
        d = 0

    return d

