C312322331333132212111133133313113313331313231333131121132332321   >>    C31232233133313221211113313331311331333131323133313112113233232   <<    C312322331333132212111133133313113313331313231333131121132332323   >>      C312322331333132212111133133313113313331313231333131121132332322   >>