C3121113331313231323132333131313231323131323223313233313233313232213111121131   >>    C312111333131323132313233313131323132313132322331323331323331323221311112113   <<    C3121113331313231323132333131313231323131323223313233313233313232213111121133   >>      C3121113331313231323132333131313231323131323223313233313233313232213111121132   >>