Question: Draw and explain a reversible 4-bit circuit that adds modulo 4 the integer y {0, 1, 2, 3} represented in binary in the first two

Draw and explain a reversible 4-bit circuit that adds modulo 4 the integer y {0, 1, 2, 3} represented in binary in the first two bits to the integer z represented in binary in the last two bits.

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