C21221212121211331322132313132313331313232233132332333132313331121   >>    C2122121212121133132213231313231333131323223313233233313231333112   <<    C21221212121211331322132313132313331313232233132332333132313331123   >>      C21221212121211331322132313132313331313232233132332333132313331122   >>