swapping c and d variables
c = c + d ; d = c - d ; c = c - d ; Console . WriteLine ( " values ▁ after ▁ " + " swapping ▁ are ▁ : ▁ " ) ; Console . WriteLine ( " a ▁ = ▁ " + a ) ; Console . WriteLine ( " b ▁ = ▁ " + b ) ; Console . WriteLine ( " c ▁ = ▁ " + c ) ; Console . WriteLine ( " d ▁ = ▁ " + d ) ; }