PROGRAMMING:Hand chopping
During the double 11 carnival, everyone in the ACM community was waiting for the shopping cart to be emptied at 0 o'clock that night. Wang is also ready to fill a list of goods ready to empty, secretly told you, Wang has two Alipay accounts, a large size has a yuan, the trumpet has b yuan. But Wang Tsai doesn't know if he has enough money. Can you help him figure out how much money he has?
###Input format:
Enter n to indicate that there are n groups of data (when n = 0, the input ends). Next, input n groups of data, each group of data input a, B（ a. B all in the range of int)
###Output format:
Output a + B
###Input example:
Here is a set of inputs. For example:
```in
one
1 1
```
###Output example:
The corresponding output is given here. For example:
```out
two
```
answer：If there is no answer, please comment
###Input format:
Enter n to indicate that there are n groups of data (when n = 0, the input ends). Next, input n groups of data, each group of data input a, B（ a. B all in the range of int)
###Output format:
Output a + B
###Input example:
Here is a set of inputs. For example:
```in
one
1 1
```
###Output example:
The corresponding output is given here. For example:
```out
two
```
answer：If there is no answer, please comment