@(coll)@{name /[^,]+/}@(end)
@(collect :vars (value sum))
@ (bind sum 0)
@ (coll)@{value /[^,]+/}@(set sum @(+ sum (int-str value)))@(end)
@(end)
@(output)
@ (rep)@name,@(last)SUM@(end)
@ (repeat)
@ (rep)@value,@(last)@sum@(end)
@ (end)