def bf(s):exec"from curses import*;u=initscr();p=q=d=n=0;x={};l=[]\nwhile p<len\
(s):\n if d:d+={'[':1,']':-1}.get(s[p],0zin'+-':n+=44-ord(s[p]zin'<>':x[q]=n;q+\
=ord(s[p])-61;n=x.get(q,0z=='.':u.echochar(nz==',':n=u.getch(z==']':p=-1+l.pop(\
z=='[':d,=n and[l.append(p)]or[1]\n p+=1\nendwin()".replace('z',')\n elif s[p]')