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Solve using K Map
(b+c') * (c'+d) * (a+b')
b+c) * (c'+d) * (a'+b')
(b+c) * (c'+d) * (a+b')
b+c) * (c'+d') * (a+b')
Solve using K map
(c'+d) * (b+c) * (a+b+d)
(c+d) * (b'+c) * (a+b'+d')
(c+d) * (b+c) * (a+b'+d')
(c'+d) * (b+c) * (a+b'+d')