title 'Test BEGIN DATA ... END DATA'.

remark EOF
----------------------------------------------------------------------
First we show that we can input data with BEGIN DATA/END DATA after
a procedure.
----------------------------------------------------------------------
EOF
data list /A B 1-2.
list.
begin data.
12
34
56
78
90
end data.

remark EOF
----------------------------------------------------------------------
Next we show that BEGIN DATA/END DATA work fine on their own as well.
----------------------------------------------------------------------
EOF
data list /A B 1-2.
begin data.
09
87
65
43
21
end data.
list.