C312322331333132212111133133313331323133313221211111211331211111232313111   >>    C31232233133313221211113313331333132313331322121111121133121111123231311   <<    C312322331333132212111133133313331323133313221211111211331211111232313113   >>      C312322331333132212111133133313331323133313221211111211331211111232313112   >>