Palindrome battle

Palindrome battle. The aim of the game is to find the maximum length palindrome. A palindrome is a sequence that is the same forward and backward. For example: 1221, LEVEL, NOON, 0000, etc. To specify a palindrome, drag your mouse or finger from one end of the palindrome to the other. All intermediate cells will be highlighted. Polindromes can be located on several lines. In this case, the palindrome is transferred to the next line as text - the beginning of the next line is connected to the end...