The translation from the Berland language into the Birland language is not an easy task. Those languages are very similar: a berlandish word differs from a birlandish word with the same meaning a little: it is spelled (and pronounced) reversely. For example, a Berlandish word code corresponds to a Birlandish word edoc. However, it's easy to make a mistake during the «translation». Vasya translated word *s* from Berlandish into Birlandish as *t*. Help him: find out if he translated the word correctly.
The first line contains word *s*, the second line contains word *t*. The words consist of lowercase Latin letters. The input data do not consist unnecessary spaces. The words are not empty and their lengths do not exceed 100 symbols.
a,b=map(int,input().split())
s=list(input())
while(b>0):
    i=0
    while(i<a-1):
        if(s[i]=='B' and s[i+1]=='G'):
            t=s[i]
            s[i]=s[i+1]
            s[i+1]=t
            i+=1
        i+=1
    b-=1
for i in s:
  print(i,end='')