Background

Description

Modify and return the given map as follows: if the key "a" has a value, set the key "b" to have that value, and set the key "a" to have the value "". Basically "b" is a bully, taking the value and replacing it with the empty string.

Format

Input

Output

Samples

"a": "candy" "b": "dirt"

{"a": "", "b": "candy"}

"a": "candy"

{"a": "", "b": "candy"}

"a": "candy" "b": "carrot" "c": "meh"

{"a": "", "b": "candy", "c": "meh"}

Limitation

1s, 1024KiB for each test case.