C11111211113313112113313331333133313331333131211113313331323132331132321   >>    C1111121111331311211331333133313331333133313121111331333132313233113232   <<    C11111211113313112113313331333133313331333131211113313331323132331132323   >>      C11111211113313112113313331333133313331333131211113313331323132331132322   >>