C312322331333132212111133133313331312111133132313331311112323221   >>    C31232233133313221211113313331333131211113313231333131111232322   <<    C312322331333132212111133133313331312111133132313331311112323223   >>      C312322331333132212111133133313331312111133132313331311112323222   >>