C111113331333132322331333133313331323133313233213133313211232212321   >>    C11111333133313232233133313331333132313331323321313331321123221232   <<    C111113331333132322331333133313331323133313233213133313211232212323   >>      C111113331333132322331333133313331323133313233213133313211232212322   >>