D1121323223313223313112113313231133132333132333132313231333132321121121   >>    D112132322331322331311211331323113313233313233313231323133313232112112   <<    D1121323223313223313112113313231133132333132333132313231333132321121123   >>      D1121323223313223313112113313231133132333132333132313231333132321121122   >>