cpp: added cpp folder and io example

cpp/io/io.cpp

@@ -0,0 +1,27 @@
+#include<iostream>
+
+//use cout and cin to print some stuff and get input
+
+int main(){
+	/*
+	 * All of these "<<" are going into std::cout
+	 * the "endl" forces a flush
+	 * note that is "l" as in "line" not "1" as in "one"
+	 */
+	std::cout << "Enter two numbers: "<< std::endl;
+
+	int input_1;
+	int input_2;
+	input_1 = 0;
+	input_2 = 0;
+
+	std::cin >> input_1 >> input_2;
+
+	std::cout << "The numbers " 
+						<< input_1 
+						<< " and " 
+						<< input_2 
+						<< " add together to make " 
+						<< input_1 + input_2
+						<< std::endl;
+}