Skyscrapers/As easy as ABC/en

Instructions

Enter the given pairs of digits and letters into the diagramm, that in every row and every column no digit and no letter appers more than once. The numbers in the pairs denote the heights of the skyscrapers. The letters at the border give the letter that first appers in this row or column. The numbers at the border give the number of skyscrapers that can be seen from that direction. Larger skyscrapers hide smaller ones.

In the exampe the Letters 'A' and 'B' combined with the numbers from 1 to 3 have been used.