#include<stdio.h>
int n,m,a[15001],x,y;
int main()
{freopen("datorii.in","r",stdin);
 freopen("datorii.out","w",stdout);
 scanf("%d %d",&n,&m);
 for(x=1;x<=n;x++)
 {scanf("%d",&a[x]);
  a[x]=a[x]+a[x-1];}
 for(;m;m--)
 {scanf("%d",&x);
  if(x) {scanf("%d %d",&x,&y);printf("%d\n",a[y]-a[x]);continue;}
  scanf("%d %d",&x,&y);
  for(;x<=n;x++) a[x]=a[x]-y;}
 return 0;}