C2221232323213331311331333133313231333132313331333233113222333133321   >>    C222123232321333131133133313331323133313231333133323311322233313332   <<    C2221232323213331311331333133313231333132313331333233113222333133323   >>      C2221232323213331311331333133313231333132313331333233113222333133322   >>