D132311233131333131331123232233132333132313221323133313231323132322331111   >>    D13231123313133313133112323223313233313231322132313331323132313232233111   <<    D132311233131333131331123232233132333132313221323133313231323132322331113   >>      D132311233131333131331123232233132333132313221323133313231323132322331112   >>