hdu 1033 Edge

#include <iostream>
#include <string>
using namespace std;

int main()
{
string command;
while(cin>>command)
{
int x = 300, y = 420;
int dir = 1;
cout<<x<<" "<<y<<" moveto"<<endl;//original
x += 10;
cout<<x<<" "<<y<<" lineto"<<endl;//after first move
for(int i=0; i<command.length(); i++)
{
if(command[i] == 'A')//turn right
dir--;
else
dir++;
dir = (dir+4)%4;
switch(dir)
{
case 0://down
y -= 10;
break;
case 1://right
x += 10;
break;
case 2://up
y += 10;
break;
case 3://left
x -= 10;
break;
}
cout<<x<<" "<<y<<" lineto"<<endl;
}//end of each move
cout<<"stroke"<<endl
<<"showpage"<<endl;
}
return 0;
}