C312322331333132212111133133313331323133313221211111232313222321   >>    C31232233133313221211113313331333132313331322121111123231322232   <<    C312322331333132212111133133313331323133313221211111232313222323   >>      C312322331333132212111133133313331323133313221211111232313222322   >>