C3121113331313231323132333131313231323131323223313233313233313233112312121
>>
C312111333131323132313233313131323132313132322331323331323331323311231212
<<
C3121113331313231323132333131313231323131323223313233313233313233112312123
>>
C3121113331313231323132333131313231323131323223313233313233313233112312122
>>