T1:
#include?<stdio.h>int?n,ans,i;
int?main()
{
scanf("%d",&n); ans=0; for?(i=2;i<n;i++)if?(n%i==0)
ans+=i; printf("%d\n",ans); return?0;}
T2:
#include?<stdio.h>double?s;
int?n,s1;
int?main()
{int?i;
scanf("%d",&n); s=1; s1=1; for?(i=1;i<=n;i++) {s1*=i;
s+=1.0/s1;
} printf("%lf\n",s); return?0;}
T3:
#include?<stdio.h>long?long?s;
int?t,now=1;
int?main()
{
scanf("%I64d",&s);//在LINUX中是scanf("%lld\n",&s);? t=0; while?(s>0) {t+=now*(s%10);
s/=100;
now*=10;
} printf("%d",t); return?0;}