Write it, run it, read the output

This is a scratch drill — your code runs, nothing is graded or recorded. No test cases, no expected output, no verdict.

TASK

Store matrices A and B, verify that their dimensions match, then use nested loops to compute A + B and A - B at each matching [i][j] position. Print both 2 by 3 result matrices.

A + B:
4 5 2
9 3 10
A - B:
2 -7 6
-5 -3 0