ml=float(input("Media dos laboratorios: "))
mt=float(input("Media dos trabalhos: "))
mp=float(input("Media das provas: "))
var1=round(ml/100, 2)
var2=round(mt/100, 2)
var3=round(mp/100, 2)
notafinal=round((var1*25+var2*30+var3*45),2)
print(notafinal)