Stoyko Stoev

The [tutorial](https://blogs.sap.com/2020/11/13/missed-or-stuck-with-opensap-week-4-generate-your-rap-object/) asks us to create a package called "ZRAP_TRAVEL_U_####"; in the code the "U_" was missing.

Reduced example using matrix in [exercism/abap](https://github.com/exercism/abap): ```abap class zcl_matrix definition public. public section. types: integertab type standard table of i with empty key. methods: matrix_row importing string type string index...