In this project, you are going to be creating a simple calculator that will only operate on positive numbers. Your program has already been set up to take in a single line of input formatted as a String, without spaces.  You may assume that the input is guaranteed to be valid.  The output should be something like "The result is ____".

Your result must be printed as an integer.

Your program should be able to handle the following operators:
Addition
Subtraction
Multiplication
Division
Modulo
You may find a new String method, .contains(), to be helpful.
.contains(char/String)
returns: true if the char/String is found in the original String, false otherwise

You can use the following to convert Strings to ints (assuming they can be converted):
Integer.parseInt(str);

Sample input/output:
In:53-22
The result is 31
In:39%4
The result is 3
In: 65
The result is 32