t=["0"]*999
a={}
s=raw_input().replace(" ","")
for i in s:a[i]=[]
while 1:
 try:
  for i,v in enumerate(raw_input().split(" ")[2:]):a[s[i]].append(v)
 except:break
u=w=b=499
c="A"
while 1:
 v=a[c][int(t[b])];t[b]=v[0]
 if v[2]!="#":c=v[2]
 else:print "".join(t[u:w+1]);break
 if(v[1]=="<"):b-=1;u=min(u,b)
 else:b+=1;w=max(b,w)