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.
n, time =input().split()
time = int(time)
q=list(input())

while (time>0):
	i=0
	while i<(len(q)-1):
		if (q[i]=='B' and q[i+1]=='G'):
			q[i],q[i+1]=q[i+1],q[i]
			i+=1
		i+=1
	time-=1

print(''.join(q))
