C3121113331313231323132333131313231323131323223313233313233313232233221121
>>
C312111333131323132313233313131323132313132322331323331323331323223322112
<<
C3121113331313231323132333131313231323131323223313233313233313232233221123
>>
C3121113331313231323132333131313231323131323223313233313233313232233221122
>>