Add the mid number of input

Question

hi!
i want to create a program in c# console. that takes 5 input from the user in the given format: A 2 1
B 3 3
A 1 3
A 4 2
B 2 2
i want to add all the mid numbers of input but i am confuse how to do it. please tell me how to do it.
thanks in advance