PAT1027. Colors in Mars (20)

#include <iostream>

using namespace std;
string tbl="0123456789ABC";
int main()
{
int a,b,c;
cin>>a>>b>>c;
int al=a%13,ah=a/13;
int bl=b%13,bh=b/13;
int cl=c%13,ch=c/13;
cout<<"#";
cout<<tbl[ah]<<tbl[al];
cout<<tbl[bh]<<tbl[bl];
cout<<tbl[ch]<<tbl[cl];

return 0;
}