human
Check if the string has a reversible equal substring at the ends | Function to print longest substring that appears at beginning of string and also at end in reverse order.
Stores the resultant string.
If the characters are same.
Otherwise , break.
If the string can 't be formed.
Otherwise print resultant string.
Driver Code"
Solution in Python:
 Give me a code to check if the string has a reversible equal substring at the ends and the other steps required?
assistant
#Here is code to check if the string has a reversible equal substring at the ends and the other steps required.
 def commonSubstring ( s ) :
	n = len ( s )
	i = 0
	j = n - 1
	ans = " "
	while ( j >= 0 ) :
		if ( s [ i ] == s [ j ] ) :
			ans += s [ i ]
			i = i + 1
			j = j - 1
		else :
			break
	if ( len ( ans ) == 0 ) :
		print ( " False " )
	else :
		print ( " True " )
		print ( ans )
if __name__ == " _ _ main _ _ " :
	S = " abca "
	commonSubstring ( S )