class Student():
	name=None
	rating=[]
	exam=0
	def __init__(self,name,conf):
		self.name=name
		self.conf=conf

	def make_lab(self,m,n=-1):
		m=float(m)
		if m>self.conf['lab_max']:
				m=self.conf['lab_max']
		if n in range(len(self.rating)):
			self.rating[n] = m
		else:
			self.rating.append(m)
		return(self)

	def make_exam(self,m):
		m=float(m)
		if m>self.conf['exam_max']:
			self.exam=self.conf['exam_max']
		return (self)

	def is_certified(self):
		sum_rating=self.exam
		for i in range(len(self.rating)):
			sum_rating += self.rating[i]
		if (self.conf['lab_num']*self.conf['lab_max']+self.conf['exam_max'])*self.conf['k']<=sum_rating:
			flag = True
		else:
			flag = False
		return (sum_rating,flag)