int?isprime(int?n)
{
int?i;
if(n<2)
return?0;
for(i=2;i*i<=n;++i)
if(n%i==0)
return?1;
}
int?main()
int?i,sum;
for(i=1,sum=0;i<101;++i)
if(isprime(i))
printf("%d\n",i);
sum+=i;
printf("%d\n",sum);