C312111333131323132313233313131323132313132322331323331311221123232321   >>    C31211133313132313231323331313132313231313232233132333131122112323232   <<    C312111333131323132313233313131323132313132322331323331311221123232323   >>      C312111333131323132313233313131323132313132322331323331311221123232322   >>