S=input().split('\n')
Q=[[S[0].find('S'),0]]
D=[[1,0],[0,1],[-1,0],[0,-1]]
P='>V<^'
while D:
a,b=Q.pop(0)
for x,y in D:
try:
c,d=a+x,b+y;k=S[d][c]
if k in P:
z=P.find(k);print(S[d+D[z][1]][c+D[z][0]]);D=[]
if k in'-|+':Q+=[[c,d]]
except: pass
Uz1pbnB1dCgpLnNwbGl0KCdcbicpClE9W1tTWzBdLmZpbmQoJ1MnKSwwXV0KRD1bWzEsMF0sWzAsMV0sWy0xLDBdLFswLC0xXV0KUD0nPlY8XicKd2hpbGUgRDoKIGEsYj1RLnBvcCgwKQogZm9yIHgseSBpbiBEOgogIHRyeToKICAgYyxkPWEreCxiK3k7az1TW2RdW2NdCiAgIGlmIGsgaW4gUDoKICAgIHo9UC5maW5kKGspO3ByaW50KFNbZCtEW3pdWzFdXVtjK0Rbel1bMF1dKTtEPVtdCiAgIGlmIGsgaW4nLXwrJzpRKz1bW2MsZF1dCiAgZXhjZXB0OiBwYXNz