PROGRAMMING:New key table output
There is a one-way linked list, the head pointer is l, and the data field of the node is an integer. The node with odd value in the linked list L is reconstituted into a new linked list new, and the new linked list is output.
Input format: enter several integers and end with - 1
Output format: the values are separated by a space, and there is no space after the last value
###Input example:
```in
1 2 3 4 5 6 7 -1
```
###Output example:
```out
1 3 5 7
```
answer：If there is no answer, please comment
Input format: enter several integers and end with - 1
Output format: the values are separated by a space, and there is no space after the last value
###Input example:
```in
1 2 3 4 5 6 7 -1
```
###Output example:
```out
1 3 5 7
```
answer：If there is no answer, please comment