C11111211113313112113313331333132313331322121111133313331323133313331322322331   >>    C1111121111331311211331333133313231333132212111113331333132313331333132232233   <<    C11111211113313112113313331333132313331322121111133313331323133313331322322333   >>      C11111211113313112113313331333132313331322121111133313331323133313331322322332   >>