#include <iostream>
using namespace std;
int main() {
while(true) {
int X,Y;
cin >>X>>Y;
int Z=0;
int l=0;
if (X<=0 || Y<=0) {
return 0;
if (X>Y) {
for (int i=Y;i<=X;i++) {
int Z=i;
cout <<i<<" ";
Z +=i;
} cout <<"sum"<<" "<<'='<<Z<<endl;
}else if (Y>X) {
for (int g=X;g<=Y;g++) {
int l=g;
cout <<g<<" ";
l +=g;
} cout <<"sum"<<" "<<'='<<l<<endl;
}
}
return 0;}
}
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