Im going to let you solve this the way i did at first
If you need help ill provide hints, but try the hard way
(im not going to implement a checker for this, ull know if u cracked it)



6221 MYUSERINFO=0345J100O96O96O95O170O98O170O91O95O170O160O147O161O94O99O155O163O159O110O149O162O147O92O156O147O162O170O130O157O155O170O169O162O161O78O85O96O94O94O99O91O94O96O91O95O95O78O96O96O104O96O96O104O97O103O85O171O170O95

8052853 MYUSERINFO=1958J102O94O99O96O102O99O97O170O95O170O91O95O170O129O158O160O151O156O149O154O157O164O147O96O95O110O145O157O155O145O143O161O162O92O156O147O162O170O123O151O145O150O143O147O154O170O169O162O161O78O85O96O94O94O99O91O94O96O91O95O94O78O95O99O104O94O94O104O99O101O85O171O170

7643049 MYUSERINFO=7857J101O100O98O97O94O98O103O170O95O170O91O95O170O146O151O149O151O162O143O154O150O143O155O155O147O160O166O110O149O155O143O151O154O92O145O157O155O170O126O143O145O279O170O169O162O161O78O85O96O94O94O99O91O94O96O91O95O94O78O95O96O104O98O95O104O98O99O85O171O170O94

3606978 MYUSERINFO=6664J97O100O94O100O103O101O102O170O95O170O91O95O170O161O143O155O110O161O150O157O163O162O151O156O149O151O156O148O160O147O156O145O150O92O145O157O155O170O113O147O155O147O156O162O78O128O163O154O147O161O170O169O162O161O78O85O96O94O94O99O91O94O96O91O95O95O78O94O94O104O98O96O104O95O98O85O171O170O94

2893030 MYUSERINFO=2752J96O102O103O97O94O97O94O170O95O170O91O95O170O147O153O143O162O147O160O151O156O143O102O94O110O167O143O150O157O157O92O145O157O155O170O117O151O156O143O170O169O162O161O78O85O96O94O94O99O91O94O96O91O95O94O78O95O96O104O94O99O104O99O94O85O171O170O95

3658334 MYUSERINFO=2349J97O100O99O102O97O97O98O170O95O170O91O95O170O144O143O160O143O145O153O147O161O110O143O157O154O92O145O157O155O170O129O162O147O164O147O170O169O162O161O78O85O96O94O94O99O91O94O96O91O95O95O78O96O94O104O96O102O104O97O97O85O171O170O94

3927846 MYUSERINFO=6456J97O103O96O101O102O98O100O170O95O170O91O95O170O154O147O161O162O143O160O151O110O150O143O145O153O147O160O155O143O151O154O92O145O157O155O170O129O143O156O146O160O143O170O169O162O161O78O85O96O94O94O99O91O94O96O91O95O95O78O96O94O104O98O99O104O99O94O85O171O170O95

7273161 MYUSERINFO=9650J101O96O101O97O95O100O95O170O95O170O91O95O170O161O162O143O162O151O145O154O156O166O110O145O157O166O92O156O147O162O170O114O143O156O156O167O170O169O162O161O78O85O96O94O94O99O91O94O96O91O95O94O78O96O96O104O99O103O104O97O103O85O171O170O94

7463427 MYUSERINFO=8949J101O98O100O97O98O96O101O170O95O170O91O95O170O147O156O153O160O167O158O162O94O110O149O155O143O151O154O92O145O157O155O170O112O151O154O154O170O169O162O161O78O85O96O94O94O99O91O94O96O91O95O95O78O96O95O104O96O96O104O95O94O85O171O170O94