Question: Take the last letters of "NAME_1 Gaga"  and concatenate them. 
Answer： The last letter of NAME_1 is "y"  and last letter of Gaga is “a”, so the concatenated word is  ya. 
Question: Take the last letters of "NAME_2"  and concatenate them.    
Answer: Let's solve this step by step. Please continue. Write your response with exactly 4 paragraphs, separated with the markdown divider: ***.
user