Identify four errors in this algorithm.

01 NumberProducts 50 // length of array Product Name [] 02 OUTPUT "Please enter product to find " 03 INPUT Product 04 Found FALSE - 05 Counter 1 06 REPEAT + 07 IF Product = Product Name [Counter] 08 09 THEN Found FALSE 10 ELSE 11 Counter Counter - 1 12 ENDIF 13 UNTIL Found AND Counter > NumberProducts 14 IF Found 15 16 17 18 THEN OUTPUT Product, "found at position ", Counter, "in the list." ELSE OUTPUT Name, "not found." 19 ENDIF