C11111211113313112113313331333133313331333131211113313331323223331322331   >>    C1111121111331311211331333133313331333133313121111331333132322333132233   <<    C11111211113313112113313331333133313331333131211113313331323223331322333   >>      C11111211113313112113313331333133313331333131211113313331323223331322332   >>