Process Logs Query

You are given a sequence of integers and a list of operations to perform on this sequence. There are two types of operations:

• Q p v: Query the sequence at the 1-indexed position p. If the value at that position is equal to v, print YES; otherwise print NO.
• U p v: Update the sequence at the 1-indexed position p with the new value v.

Your task is to process all operations in the order they are given and for each query operation, output the appropriate response.

Note: The positions are 1-indexed.

inputFormat

The input is read from stdin and contains the following:

1. An integer N denoting the number of elements in the sequence.
2. A line with N space-separated integers representing the initial sequence.
3. An integer M denoting the number of operations.
4. M lines each containing an operation in one of the following formats:
   • Q p v — to query whether the element at position p equals v.
   • U p v — to update the element at position p to v.

outputFormat

For each query operation (Q), print a single line containing either YES or NO to stdout.

## sample

5
3 8 12 6 7
4
Q 2 8
Q 4 10
U 4 10
Q 4 10

YES
NO
YES

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