InstructionSet

using System;
using System.Linq;

class InstructionSet
{
    static void Main(string[] args)
    {
        string line = null;
        while((line=Console.ReadLine())!="END")
        {

            double sum =1;
            string[] input = line.Trim().Split().ToArray();

            if (input[0] == "INC")
            {
                for (int i = 1; i < input.Length; i++)
                {
                    double a = double.Parse(input[i]);
                    Console.WriteLine(a+1);
                }
            }
            if (input[0] == "DEC")
            {
                for (int i = 1;i< input.Length; i++)
                {
                    double a = double.Parse(input[i]);
                    Console.WriteLine(a-1);
                }
            }
            if (input[0] == "ADD")
            {
                for (int i = 1 ; i < input.Length; i++)
                {

                    double a = double.Parse(input[i]);
                    sum +=a ;
                    if(i == input.Length-1)
                    {
                        Console.WriteLine(sum-1);
                    }
                }
            }
            if (input[0] == "MLA")
            {
                for (int i = 1; i < input.Length; i++)
                {
                    double a = double.Parse(input[i]);
                    sum *= a;
                    if (i == input.Length - 1)
                    {
                        Console.WriteLine(sum);
                    }
                }
            }
            if (input[0] == "END")
            {
                break;
            }
        }
    }
}