Puzzle 5

This one should be done quite quickly.

Rules are simple:

You need to fill the grid with numbers 1,2,3 and alphabets A,B,C.
Conditions are:

• 1,2,3 represents height of three distinct towers.
• Numbers outside the box shows the number of towers visible from that point(1 outside the box shows only tower 3 is visible from that point and other two shorter buildings are hidden behind that).
• Alphabets outside the box shows that same alphabet will appear first in the corresponding row or column.
• Each row and column should contain 1,2,3,A,B and C exactly once.