2006mdk.c
#include <stdio.h>
int main(void)
{
int x;
int ans;
do{
scanf("%d", &x);
if (x == 0) break;
ans = x*x+2*x-5;
printf("%d\n", ans);
}while(-1000<=x && x<=1000 && x != 0);
return(0);
}
#include <stdio.h>
int main(void)
{
int x;
int ans;
do{
scanf("%d", &x);
if (x == 0) break;
ans = x*x+2*x-5;
printf("%d\n", ans);
}while(-1000<=x && x<=1000 && x != 0);
return(0);
}