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r__$=\W%_$=|q_$_W%+\#)g Explanation
rq Push Takethe input _ _$ Duplicate it and _$sort _W% Duplicate and sort itreverse = + Check ifConcatenate equal the sorted and the reversed \strings \ Swap top stack elements (bringing the originalBring wordinput to the top of the stack) W% # Reverse it Find the index of the input in _$the other string; returns Duplicate-1 andif sortnot itfound ) = Increment Check if equal g Signum (coerces to |0 or OR1) r__$=\W%_$=| Explanation
r Take input _ Duplicate it _$ Duplicate and sort it = Check if equal \ Swap top stack elements (bringing the original word to the top of the stack) W% Reverse it _$ Duplicate and sort it = Check if equal | OR q_$_W%+\#)g Explanation
q Push the input _$ Duplicate and sort _W% Duplicate and reverse + Concatenate the sorted and the reversed strings \ Bring input to the top # Find the index of the input in the other string; returns -1 if not found ) Increment g Signum (coerces to 0 or 1) r__$=\W%_$=| Explanation
r Take input _ Duplicate it _$ Duplicate and sort it = Check if equal \ Swap top stack elements (bringing the original word to the top of the stack) W% Reverse it _$ Duplicate and sort it = Check if equal | OR