C12121321333132233131333131133131231323132322132313231323133112121   >>    C1212132133313223313133313113313123132313232213231323132313311212   <<    C12121321333132233131333131133131231323132322132313231323133112123   >>      C12121321333132233131333131133131231323132322132313231323133112122   >>