#include<iostream> using namespace std; int main(){ double zd,hj,xl,nj,a; cin>>zd>>hj>>xl>>nj>>a; if(xl<=-100){ cout<<"gg"; } else if(xl<=0){ cout<<"daodi"; } else if(zd>hj and nj>0){ cout<<xl-zd*a<<endl; cout<<"<"<<endl; } else if(zd=hj and nj>0){ cout<<(xl-zd*a/2)*1.0<<endl; cout<<(nj-zd*a)<<endl; cout<<"="<<endl; } else if(zd<hj and nj>0){ cout<<(nj-zd*a)*1.0<<endl; cout<<">"<<endl; } else if(nj<=0){ cout<<(xl-zd*a)*1.0<<endl; cout<<"wunaijiu"<<endl; } return 0; }