D132311233131333131331123232233132333132313221323133313233313222331   >>    D13231123313133313133112323223313233313231322132313331323331322233   <<    D132311233131333131331123232233132333132313221323133313233313222333   >>      D132311233131333131331123232233132333132313221323133313233313222332   >>