There are 42 kilograms of cantaloupe in the fruit shop, 105 kilograms more pears than cantaloupe, and 28 kilograms less apples than the total of cantaloupe and pears. How many kilograms are there apples? (List the comprehensive formula solution, otherwise no points will be awarded)
水果店有哈密瓜42千克，梨比哈密瓜多105千克，苹果比哈密瓜、梨的总数少28千克，有苹果多少千克？(列综合算式解答，否则不得分)
<result>163</result>