题解 | #小红的图#

#include<iostream>
 
int main()
{
    int x,y;
    std::cin>>x>>y;
    if(x==1)
    {
        std::cout<<"L";
        if(y==1)
        {
            std::cout<<"U";
        }
        else
        {
            std::cout<<"D";
        }
    }
    else
    {
        std::cout<<"R";
        if(y==1)
        {
            std::cout<<"U";
        }
        else
        {
            std::cout<<"D";
        }
    }
}