# qn > 0.5
qn = 0.7
w1 = qn
puts 'qn > 0.5'
qn > 0.5 && w1 = 1.0 - w1
puts w1
qn > 0.5 && w1 = 1.0 - w1
puts w1
# qn < 0.5
qn = 0.4
w1 = qn
puts 'qn < 0.5'
qn > 0.5 && w1 = 1.0 - w1
puts w1
qn > 0.5 && w1 = 1.0 - w1
puts w1
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