can lookup a number to a 10x10 table?

hi,
how can i lookup a number to 10rows by 10columns (total 100 cells) of data?

Cell A1
1234

Cell B1 to Cell K10 are filled with random 4-digit numbers, and L1-L10 are text to be displayed when a match is found.

want to see if the number at A1 matches any in the B1-K10 table, then display the text on Column L.
the B1-K10 cannot be sorted bcoz they are random and changes overtime.

was experimenting with vlookup & hlookup but couldn't make it.

iF it has a match, let's say formula on cell A2 then A2 will just display "Match" or "Invalid" etc based on the text input in L1 to L10

suggestions welcome.
thanks,