4956: P8324 [COCI2021-2022#5] Kemija(普及-)

Memory Limit:128 MB Time Limit:1.000 S
Judge Style:Text Compare Creator:
Submit:0 Solved:0

Description

Input

Output

Sample Input Copy

3
A+B->AB
AB+CD->AC+DB
AB+B->AB

Sample Output Copy

DA
DA
NE

HINT