D132311233131333131331123232233132333132313221323133313231333132313223311211   >>    D13231123313133313133112323223313233313231322132313331323133313231322331121   <<    D132311233131333131331123232233132333132313221323133313231333132313223311213   >>      D132311233131333131331123232233132333132313221323133313231333132313223311212   >>