how can i parse data with multiple commands

i wanted to receive the data from one arduino and send it to the another..
in arduino 1 ask the user to enter the 3 values
A,B,C

if the data is
A ---> 23
B ---->45
C ----> 89

anyone tell me how can i parse it in the second arduino by establishing serial communication between two arduino's?

The easiest way would be sending the data one by one in a ceratain order by using the Serial.println() function.
On the receiving end use the Serial.parseInt() function