C111113331333132322331333133313331311331323133313221211111221123132311   >>    C11111333133313232233133313331333131133132313331322121111122112313231   <<    C111113331333132322331333133313331311331323133313221211111221123132313   >>      C111113331333132322331333133313331311331323133313221211111221123132312   >>