Given two numbers, calculate their average.
87 and 12
The average of 87 and 12 is (87 + 12)/2 = 49.5
Complete the following task based on the instruction and optional input provided.### Instruction:
Given two numbers, calculate their average.

### Input:
87 and 12

### Output:
The average of 87 and 12 is (87 + 12)/2 = 49.5