DGS004
null 0 0

an "0"
an "1"
an "2"
an "3"

an "10"
an "11"
an "12"
an "13"

an "20"
an "21"
an "22"
an "23"

an "30"
an "31"
an "32"
an "33"

ae "0-1" "0" "1"
ae "0-2" "0" "2"
ae "0-3" "0" "3"
ae "1-2" "1" "2"
ae "1-3" "1" "3"
ae "2-3" "2" "3"

ae "10-11" "10" "11"
ae "10-12" "10" "12"
ae "10-13" "10" "13"
ae "11-12" "11" "12"
ae "11-13" "11" "13"
ae "12-13" "12" "13"

ae "20-11" "20" "21"
ae "20-12" "20" "22"
ae "20-13" "20" "23"
ae "21-12" "21" "22"
ae "21-13" "21" "23"
ae "22-13" "22" "23"

ae "30-31" "30" "31"
ae "30-32" "30" "32"
ae "30-33" "30" "33"
ae "31-32" "31" "32"
ae "31-33" "31" "33"
ae "32-33" "32" "33"

#ae "inter1" "0" "10"
#ae "inter2" "10" "20"
#ae "inter3" "20" "30"
#ae "inter4" "30" "0"