I need help with adding up a list of names to match amount given for for four quarter, different names in each qtr how do i pick all names up to match what was contributed ;;;;Eg

qat 1 qua 2 qut 3
Maggie 10 jane 10 joan10

Joan 15 joan 10 joan15

Emma 10 emma10
Maggie 10 jane 10
Joan 15 joan 10

Emma 10 emma10