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**Task** | Statistics

Time limit: | 1.00 s | Memory limit: | 512 MB |

You are given a rooted tree that consists of $n$ nodes. The nodes are numbered $1,2,\ldots,n$, and node $1$ is the root. Each node has a value.

Your task is to process following types of queries:

- change the value of node $s$ to $x$

- calculate the sum of values in the subtree of node $s$

The first input line contains two integers $n$: the number of nodes and queries. The nodes are numbered $1,2,\ldots,n$.

The next line has $n$ integers $v_1,v_2,\ldots,v_n$: the value of each node.

Then there are $n-1$ lines that describe the edges. Each line contans two integers $a$ and $b$: there is an edge between nodes $a$ and $b$.

Finally, there are $q$ lines that describe the queries. Each query is either of the form "1 $s$ $x$" or "2 $s$".

Print the answer to each query of type 2.

- $1 \le n, q \le 2 \cdot 10^5$

- $1 \le a,b, s \le n$

- $1 \le v_i, x \le 10^9$

Input:

`5 3`

4 2 5 2 1

1 2

1 3

3 4

3 5

2 3

1 5 3

2 3

Output:

`8`

10