int x;
int b;
int s;
scanf("%d%d ",& ampx & amp; b);
if(x & lt; 0){// Determine whether x is a negative number.
x = 0-x;
}
if(b & lt; 0){// Judge whether b is negative.
b = 0-b;
s = x+b; //sum of x and b
Returns 0;