anagram

def check(s,z):
    temp=z
    for i in s:
        if i in temp:
            temp.remove(i)
        else:
            return 0
    return 1
s=input()
n=int(input())
x=0; fc=""
for i in range(n):
    dir,diff=input().split()
    if dir=="L":
        x+=int(diff)
        fc=fc+s[x]
    elif dir=="R":
        x-=int(diff)
        fc=fc+s[x]
z=list(fc)
l=len(s); flag=0
for i in range(l):
    if flag==1:
        break
    for j in range(i+1+len(z),l):
        flag=check(s[i:j+1],z)
        if flag==1:
            break
print("YES") if flag==1 else print("NO")