911 B | 911 chars
direction = {"R":(1,0),"L":(-1,0),"B":(0,-1),"T":(0,1),"RT":(1,1),"LT":(-1,1),"RB":(1,-1),"LB":(-1,-1)}
king,rock,n = input().split()
n = int(n)
king = list(king)
rock = list(rock)
king[0] = ord(king[0])-64
rock[0] = ord(rock[0])-64
king[1] = int(king[1])
rock[1] = int(rock[1])
for i in range(n):
# print(king,rock)
d = direction[input()]
if king[0] + d[0] < 1 or king[0] + d[0] > 8 or king[1] + d[1] < 1 or king[1] + d[1] > 8:
continue
if king[0] + d[0] == rock[0] and king[1] + d[1] == rock[1]:
if rock[0] + d[0] < 1 or rock[0] + d[0] > 8 or rock[1] + d[1] < 1 or rock[1] + d[1] > 8:
continue
else:
for j in range(2):
rock[j]+=d[j]
king[j]+=d[j]
else:
for j in range(2):
king[j] += d[j]
print("{}{}".format(chr(king[0]+64),king[1]))
print("{}{}".format(chr(rock[0]+64),rock[1]))