C11111333133313232233133313331333133313231312331323133313112111121132121   >>    C1111133313331323223313331333133313331323131233132313331311211112113212   <<    C11111333133313232233133313331333133313231312331323133313112111121132123   >>      C11111333133313232233133313331333133313231312331323133313112111121132122   >>