#!/usr/bin/python3
import fileinput
import re

stack = []
stack.append([])	# for convenience, element 0, not used

def setup(line):
	i = 1
	num = 1
	while i < len(line):
		if line[i] != ' ':
			while num >= len(stack):
				stack.append([])
			stack[num].append(line[i])
		i += 4
		num += 1

def move(line):
	r = r'move (\d+) from (\d+) to (\d+)'
	result = re.search(r, line)
	num, fro, to = list(map(int, result.groups()))
	# print("num = %d, fro = %d, to = %d" % (num, fro, to))
	grab = stack[fro][0:num]
	## grab = grab[::-1]
	stack[fro] = stack[fro][num:]
	stack[to] = grab + stack[to]

# Get initial state.
state = 0
for line in fileinput.input():
	line = line.rstrip()
	if line == "":
		state = 1
		continue
	if line.startswith(' 1'):
		continue
	if state == 0:
		setup(line)
	else:
		move(line)
	# print(stack)

tops = ""
for i in range(1, len(stack)):
    tops += stack[i][0]
print(tops)