C11111333133313232233133313331333131123313221211113313113313221132221   >>    C1111133313331323223313331333133313112331322121111331311331322113222   <<    C11111333133313232233133313331333131123313221211113313113313221132223   >>      C11111333133313232233133313331333131123313221211113313113313221132222   >>