#include <stdio.h>
int main ()
{
int a,b,i,c = 0;
scanf("%d %d",&a ,&b);
printf("%d",a);
for(i = a + 1; i <=b; i++)
{
if(i%2==0){
c = c - i;
printf("-%d",i);
}
else if(i%2!=0){
c = c + i;
printf("+%d",i);
}
}
if(a%2==0){
c = c - a;
}
else if(a%2!=0){
c = c + a;
}
printf("=%d",c);
}