C3121113331311331313233313231331123132313232233132313112331311331323211131   >>    C312111333131133131323331323133112313231323223313231311233131133132321113   <<    C3121113331311331313233313231331123132313232233132313112331311331323211133   >>      C3121113331311331313233313231331123132313232233132313112331311331323211132   >>