Swift code

        import Foundation

        print("Enter first number: ", terminator: "")
        let input1 = readLine() ?? "0"
        let num1 = Double(input1) ?? 0
        
        print("Enter second number: ", terminator: "")
        let input2 = readLine() ?? "0"
        let num2 = Double(input2) ?? 0
        
        let sum = num1 + num2
        print("Result: \(sum)")
        
        
      

Output

            
                Enter first number: 150
                Enter second number: 5
                Result: 155