C21221212121211331322132313132313231313232233132313223313131133111   >>    C2122121212121133132213231313231323131323223313231322331313113311   <<    C21221212121211331322132313132313231313232233132313223313131133113   >>      C21221212121211331322132313132313231313232233132313223313131133112   >>