C313212111113331323312111133133313331333133313331333133313231333133313231112321   >>    C31321211111333132331211113313331333133313331333133313331323133313331323111232   <<    C313212111113331323312111133133313331333133313331333133313231333133313231112323   >>      C313212111113331323312111133133313331333133313331333133313231333133313231112322   >>