D2122132313112331311221123133313233313233313231323132322331323211211   >>    D212213231311233131122112313331323331323331323132313232233132321121   <<    D2122132313112331311221123133313233313233313231323132322331323211213   >>      D2122132313112331311221123133313233313233313231323132322331323211212   >>