- # your code goes here 
- import re 
-   
- string = "A B C D" 
- keys = ["A", "B", "A B"] 
-   
- matches = [] 
- for k in keys: 
-     matches += re.findall(re.escape(k), string) 
-   
- print(matches) 
-   
				IyB5b3VyIGNvZGUgZ29lcyBoZXJlCmltcG9ydCByZQoKc3RyaW5nID0gIkEgQiBDIEQiCmtleXMgPSBbIkEiLCAiQiIsICJBIEIiXQoKbWF0Y2hlcyA9IFtdCmZvciBrIGluIGtleXM6CiAgICBtYXRjaGVzICs9IHJlLmZpbmRhbGwocmUuZXNjYXBlKGspLCBzdHJpbmcpCiAgICAKcHJpbnQobWF0Y2hlcykK