There are three commodities A, B, and C. If you buy 3 pieces of A, 7 pieces of B, and 1 piece of C, the total cost is 32 yuan; if you buy 4 pieces of A, 10 pieces of B, and 1 piece of C, the total cost is 43 yuan. How much does it cost for B and C to buy one each?
有甲、乙、丙三种商品，如果买甲3件、乙7件、丙1件，共需32元；买甲4件，乙10件，丙1件，共需43元，那么甲、乙、丙各买一件需多少元．
<gadget id="calculator">2 * 11</gadget>
<output>22</output>

<gadget id="calculator">32 - 22</gadget>
<output>10</output>

<result>10</result>