C3121113331313231323132333131313231323131323223313233313232332333111   >>    C312111333131323132313233313131323132313132322331323331323233233311   <<    C3121113331313231323132333131313231323131323223313233313232332333113   >>      C3121113331313231323132333131313231323131323223313233313232332333112   >>