The sum of the three numbers A, B, and C is 204, the number of A is 3 times that of B, and the number of B is 4 times that of C. What is the number of armor?
甲乙丙三个数的和是204，甲数是乙数的3倍，乙数是丙数的4倍．甲数是多少？
<gadget id="calculator">4 * 3</gadget>
<output>12</output>

<gadget id="calculator">1 + 4 + 12</gadget>
<output>17</output>

<gadget id="calculator">204 / 17</gadget>
<output>12</output>

<gadget id="calculator">12 * 12</gadget>
<output>144</output>

<result>144</result>