C1111233131211111211113313331333133313331322322331312111111331323213221   >>    C111123313121111121111331333133313331333132232233131211111133132321322   <<    C1111233131211111211113313331333133313331322322331312111111331323213223   >>      C1111233131211111211113313331333133313331322322331312111111331323213222   >>