Main function
public static void Main ( ) { int a = - 10 ; int b = 15 ; int x = a ; Console . Write ( " x ▁ is ▁ : ▁ " + x ) ; x = alternate ( a , b , x ) ; Console . Write ( " STRNEWLINE After ▁ exchange ▁ " ) ; Console . Write ( " x is : " } }