Ruby:
Random Tests return incorrect expected values:

one example:
Testing for +7dy+12d-14d
✘ It should work for random inputs too - Expected: "26d+7dy", instead got: "-2d+7dy"

It seems that leading zeros should be omitted, yet on the Ruby test cases for submission they are expected.

Instance:

Expected: "101", instead got: "0101"
Test Passed: Value == "0101"

Please advise.