N, X = map(int, input().split())

res = [0] * X

for _ in range(N):
	index, val = map(int, input().split())
	res[index-1] = val
	cur = val-1
	for j in range(index, X):
		if res[j] < cur:
			res[j] = cur
			cur -= 1
		else:
			break
	cur = val-1
	
	for j in reversed(range(0, index-1)):
		if res[j] < cur:
			res[j] = cur
			cur -= 1
		else:
			break
			
print(*res)