에디터 Python 버전(BOJ 1406)

1406.py

s=input()
lst=list(s);rst=[]
k = int(input())
for i in range(0,k):
    cmd = input()
    if cmd=='L' and len(lst):
        rst.append(lst.pop())
    elif cmd=='D' and len(rst):
        lst.append(rst.pop())
    elif cmd=='B' and len(lst):
        lst.pop()
    else:
        cmd=cmd.split()
        if(len(cmd)==2):
            lst.append(cmd[1])
ret = ''.join(lst)
for v in rst[::-1]:
    ret+=v
print(ret)