val a = Console.readInt
val b = Console.readInt
 
val sum = a + b //integer addition is discouraged in print statements due to confusion with String concatenation
println("a + b = " + sum)
println("a - b = " + (a - b))
println("a * b = " + (a * b))
println("quotient of a / b = " + (a / b)) // truncates towards 0
println("remainder of a / b = " + (a % b)) // same sign as first operand