Gift Registry Total Value

You are given a gift registry containing a list of gifts. Each gift is described by its type (a string which may contain spaces) and a price (an integer). The total value of the registry is the sum of the prices of all gifts.

The task is to compute the total value using the formula: \[ \text{Total Value} = \sum_{i=1}^{n} \text{price}_i \]

The input will be provided via stdin, and the output should be printed to stdout.

inputFormat

The first line contains an integer n, representing the number of gifts in the registry. The following n lines each contain a gift description and its price. The gift description is a string (which may include spaces) and the price is an integer. The price is always the last element on the line.

Example:

3
Teddy bear 20
Book 15
Train set 30

outputFormat

Output a single integer: the total value of all gifts.

Example:

65

## sample

3
Teddy bear 20
Book 15
Train set 30

65