C3121113331313231323132333131313231323131323223313233313132333131323132322131
>>
C312111333131323132313233313131323132313132322331323331313233313132313232213
<<
C3121113331313231323132333131313231323131323223313233313132333131323132322133
>>
C3121113331313231323132333131313231323131323223313233313132333131323132322132
>>