C111123313331323113313331333132313331311331312111111211331322232321   >>    C11112331333132311331333133313231333131133131211111121133132223232   <<    C111123313331323113313331333132313331311331312111111211331322232323   >>      C111123313331323113313331333132313331311331312111111211331322232322   >>