C2313111122233131121133132311113313223313231333132333132332323221   >>    C231311112223313112113313231111331322331323133313233313233232322   <<    C2313111122233131121133132311113313223313231333132333132332323223   >>      C2313111122233131121133132311113313223313231333132333132332323222   >>