A+B for each test case

Read two integers $A$ and $B$ and print $A+B$. The input holds several test cases.

The first line contains the number of test cases $T$.

Each of the next $T$ lines contains two integers $A$ and $B$ separated by a space. ($0 < A, B < 10$)

For each test case, print one line in the form Case #x: y, where $x$ is the test case number starting at 1 and $y$ is the value of $A+B$.