D1121323223313223313112113313231133132333132333132313231333133313232211211   >>    D112132322331322331311211331323113313233313233313231323133313331323221121   <<    D1121323223313223313112113313231133132333132333132313231333133313232211213   >>      D1121323223313223313112113313231133132333132333132313231333133313232211212   >>