def f(p):
 p=map(lambda s:map(lambda d:d==3*(' ',)and(0,-1)or(int(d[0]+d[1]),'><^v'.index(d[2])),zip(s[::3],s[1::3],s[2::3])),p);x,y=max([(x,y)for x in range(len(p[0]))for y in range(len(p))],key=lambda(x,y):p[y][x][0]);r=o=0
 try:
	while 1:
	 1/(y*x>=0);d=p[y][x]
	 if-1<d[1]:r=eval('r%sd[0]'%'+-*/'[o]);o=d[1];a=(-(o==1),1)[o<1];b=(-(o==2),1)[o>2]
	 x+=a;y+=b
 except:print r
 
f('''\
94>      66v
   05v   08<
         43>
   03>   00^'''.split('\n'))  # -> 215
 
f('''\
77>   80v55^02<
      20>   14^'''.split('\n'))  # -> -19
 
f('''\
22>11>15>80>14v
18^17>      10v
00^   90v43^02v
07^11<15<22v01<'''.split('\n')) # -> -16
 
f('''\
99>98>97>96>95>94v
93>92>   91v   03<'''.split('\n')) # -> 102

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