A8997 | Sereja and Array

Sereja has got an array, consisting of $n$ integers, $a_{1},a_{2},...,a_{n}$ . Sereja is an active boy, so he is now going to complete $m$ operations. Each operation will have one of the three forms:

1. Make $v_{i}$ -th array element equal to $x_{i}$ . In other words, perform the assignment $a_{vi}=x_{i}$ .
2. Increase each array element by $y_{i}$ . In other words, perform $n$ assignments $a_{i}=a_{i}+y_{i}$ $(1<=i<=n)$ .
3. Take a piece of paper and write out the $q_{i}$ -th array element. That is, the element $a_{qi}$ .

Help Sereja, complete all his operations.

The first line contains integers $n$ , $m$ $(1<=n,m<=10^{5})$ . The second line contains $n$ space-separated integers $a_{1},a_{2},...,a_{n}$ $(1<=a_{i}<=10^{9})$ — the original array.

Next $m$ lines describe operations, the $i$ -th line describes the $i$ -th operation. The first number in the $i$ -th line is integer $t_{i}$ $(1<=t_{i}<=3)$ that represents the operation type. If $t_{i}=1$ , then it is followed by two integers $v_{i}$ and $x_{i}$ , $(1<=v_{i}<=n,1<=x_{i}<=10^{9})$ . If $t_{i}=2$ , then it is followed by integer $y_{i}$ $(1<=y_{i}<=10^{4})$ . And if $t_{i}=3$ , then it is followed by integer $q_{i}$ $(1<=q_{i}<=n)$ .

For each third type operation print value $a_{qi}$ . Print the values in the order, in which the corresponding queries follow in the input.