C21221212121211331322132313132313331313232233132332333132313233221   >>    C2122121212121133132213231313231333131323223313233233313231323322   <<    C21221212121211331322132313132313331313232233132332333132313233223   >>      C21221212121211331322132313132313331313232233132332333132313233222   >>