D2333131333132213231323223313112113313231323133313221323132322121   >>    D233313133313221323132322331311211331323132313331322132313232212   <<    D2333131333132213231323223313112113313231323133313221323132322123   >>      D2333131333132213231323223313112113313231323133313221323132322122   >>