The building blocks with one star, two stars and three stars are shown in a, b and c respectively. There are 5 blocks with one star, 2 blocks with two stars and 1 block with three stars. If several of these blocks are used to form a strip with five stars, how many different ways are there in total?
上面有一颗星、两颗星和三颗星的积木分别见a，b和c．现有5块一颗星，2块两颗星和1块三颗星的积木，如果用若干个这些积木组成一个五颗星的长条，那么一共有多少不同的摆放方式．
<gadget id="calculator">3 ** 1</gadget>
<output>3</output>

<gadget id="calculator">4 ** 1</gadget>
<output>4</output>

<gadget id="calculator">3 + 1 + 2 + 3 + 4</gadget>
<output>13</output>

<result>13</result>