PAT 1027. Colors in Mars

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

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

Output

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 the left.

Sample Input
15 43 71

Sample Output

123456

分析
把给的10进制的数都转化为13进制

#include<iostream>
using namespace std;
int main(){
	int i,j,k;
	cin>>i>>j>>k;
	char ch[14]={"0123456789ABC"};
	cout<<"#"<<ch[i/13]<<ch[i%13]<<ch[j/13]<<ch[j%13]<<ch[k/13]<<ch[k%13]<<endl;
	return 0;
}