C111113331333132322331333133313331333132313121111331323121121121   >>    C11111333133313232233133313331333133313231312111133132312112112   <<    C111113331333132322331333133313331333132313121111331323121121123   >>      C111113331333132322331333133313331333132313121111331323121121122   >>