C3121113331313231323132333131313231323131323223313233313232321321   >>    C312111333131323132313233313131323132313132322331323331323232132   <<    C3121113331313231323132333131313231323131323223313233313232321323   >>      C3121113331313231323132333131313231323131323223313233313232321322   >>