How to sum cells with numbers and text in excel?

Question

excel

How to sum cells with numbers and text in excel?
those.
in cell G2, the sum of all cells of row 2 where there is a letter "l" should be obtained,
and in cell H2, the sum of all cells of row 2 where there is a letter "p"
example on the screen

Answer 1

For the letter "l" the formula is:
For "n" respectively:
Both are array formulas. Entered by simultaneously pressing Ctrl+Shift+Enter