import re
 
quest = input() 
 
left = []
right = []
 
inp = input()
 
for i in re.finditer('[a-z]|<delete>|<bspace>|<left>|<right>', inp):
    case = i.group()
    if case == '<delete>':
        if right:
            right.pop()
    elif case == '<bspace>':
        if left:
            left.pop()
    elif case == '<left>':
        if left:
            right.append(left.pop())
    elif case == '<right>':
        if right:
            left.append(right.pop())
    else:
        left.append(case)
 
if quest == ''.join(left + right[::-1]):
    print('Yes')
else:
    print('No')
 
 

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hellochild
helto<left><bspace>l<delete>ochilds<bspace>