D33131112113313231333133313331333132313113313233313232233132211321   >>    D3313111211331323133313331333133313231311331323331323223313221132   <<    D33131112113313231333133313331333132313113313233313232233132211323   >>      D33131112113313231333133313331333132313113313233313232233132211322   >>