C1111133313331323223313331333133313112331322121111332313231311211   >>    C111113331333132322331333133313331311233132212111133231323131121   <<    C1111133313331323223313331333133313112331322121111332313231311213   >>      C1111133313331323223313331333133313112331322121111332313231311212   >>