C3121113331313231323132333131313231323131323223313233313233313232321311311   >>    C312111333131323132313233313131323132313132322331323331323331323232131131   <<    C3121113331313231323132333131313231323131323223313233313233313232321311313   >>      C3121113331313231323132333131313231323131323223313233313233313232321311312   >>