Alula has the following quiz scores: 17, 10, 9, 14, 16, 8, 10, and 10. What must the sum of her next three quiz scores be in order to have an overall average of 14?

[17 + 10 + 9 + 14 + 16 + 8 + 10 + 10 + sum ] / 11 = 14

[ 94 + sum ] = 14 *11

94 + sum = 154

sum = 154 - 94

sum = 60