3. The computer system according to claim 2 , wherein the processor selects a predetermined number of elements for calculating the score from the one or more elements that have been selected in descending order of the evaluation values of the elements until the sum exceeds the unique target value.
2. The computer system according to claim 1 , wherein the processor selects, from the extracted elements, one or more elements for calculating the score on the basis of sum of the evaluation values of the respectively selected elements.