C312322331333132212111133133313331323133313221211111211331323133312111232311   >>    C31232233133313221211113313331333132313331322121111121133132313331211123231   <<    C312322331333132212111133133313331323133313221211111211331323133312111232313   >>      C312322331333132212111133133313331323133313221211111211331323133312111232312   >>