D1121323223313223313112113313231133132333132333132313231333131121321   >>    D112132322331322331311211331323113313233313233313231323133313112132   <<    D1121323223313223313112113313231133132333132333132313231333131121323   >>      D1121323223313223313112113313231133132333132333132313231333131121322   >>