Driver code
if __name__ == " _ _ main _ _ " : NEW_LINE INDENT a = [ 4 , 1 , 3 , 4 ] ; NEW_LINE n = len ( a ) ; NEW_LINE if ( isValidSeq ( a , n ) ) : NEW_LINE INDENT print ( " Valid " ) ; NEW_LINE DEDENT else : NEW_LINE INDENT print ( " Invalid " ) ; NEW_LINE DEDENT DEDENT