matplitlib how to draw a histogram

1import matplotlib.pyplot as plt
2 
3x = [1,1,2,3,3,5,7,8,9,10,
4     10,11,11,13,13,15,16,17,18,18,
5     18,19,20,21,21,23,24,24,25,25,
6     25,25,26,26,26,27,27,27,27,27,
7     29,30,30,31,33,34,34,34,35,36,
8     36,37,37,38,38,39,40,41,41,42,
9     43,44,45,45,46,47,48,48,49,50,
10     51,52,53,54,55,55,56,57,58,60,
11     61,63,64,65,66,68,70,71,72,74,
12     75,77,81,83,84,87,89,90,90,91
13     ]
14
15plt.hist(x, bins=10)
16plt.show()
17