PAT 1027 Colors in Mars python解法

1027 Colors in Mars （20 分）
People in Mars represent the colors in their computers in a similar way as the Earth people. That is, a color is represented by a 6-digit number, where the first 2 digits are for Red, the middle 2 digits for Green, and the last 2 digits for Blue. The only difference is that they use radix 13 (0-9 and A-C) instead of 16. Now given a color in three decimal numbers (each between 0 and 168), you are supposed to output their Mars RGB values.

Input Specification:
Each input file contains one test case which occupies a line containing the three decimal color values.

Output Specification:
For each test case you should output the Mars RGB value in the following format: first output #, then followed by a 6-digit number where all the English characters must be upper-cased. If a single color is only 1-digit long, you must print a 0 to its left.

Sample Input:
15 43 71
Sample Output:
#123456

解题思路：此题就是一个简单的10进制转13进制，并且题目限定给的十进制数在0-168，最简单的办法就是取商和余，对15来说，15/13=1…2，对应的13进制数就是12。首先定义一个列表，存储 0-9 和 A-C，商和余数就是列表的索引。

a,b,c=map(int,input().split())
z = ['0','1','2','3','4','5','6','7','8','9','A','B','C']
def to13(n):
    return str(z[n//13])+str(z[n%13])
print('#'+to13(a)+to13(b)+to13(c))