One day, Aunt Zhang and her son Xiao Fei were on their way home from kindergarten when they saw an old man walking towards him. He is holding 4 canes, each of which has 4 branches, and 4 small paper cranes are hung on each branch. Xiao Fei quickly counted the number of paper cranes, how many did Xiao Fei count.
一天，张阿姨和儿子小飞在从幼儿园回家的路上，看到迎面走来一位老爷爷．他拿着4根手杖，每根手杖上有4个树杈，每个树杈上挂着4只小纸鹤．小飞很快就数了出来纸鹤的个数，小飞数的是多少个．
<gadget id="calculator">4 * 4 * 4</gadget>
<output>64</output>

<result>64</result>