C313212111133131211331333133313331333133313331333133313331333132312213221   >>    C31321211113313121133133313331333133313331333133313331333133313231221322   <<    C313212111133131211331333133313331333133313331333133313331333132312213223   >>      C313212111133131211331333133313331333133313331333133313331333132312213222   >>