n=input("Enter your name = ")
a1=input("Enter the name of the first subject = ")
a2=float(input("Enter the marks of first subject = "))
b1=input("Enter the name of the second subject = ")
b2=float(input("Enter the marks of second subject = "))
c1=input("Enter the name of the third subject = ")
c2=float(input("Enter the marks of third subject = "))
d1=input("Enter the name of the fourth subject = ")
d2=float(input("Enter the marks of fourth subject = "))
e1=input("Enter the name of the fifth subject = ")
e2=float(input("Enter the marks of fifth subject = "))
p=(a2+b2+c2+d2+e2)/5
if (p<30 and p>0):
print("Percentage =",p,"%"."\n""Grade D")
elif (p<60 and p>31):
print("Percentage =",p,"%"."\n""Grade C")
elif (p<80 and p>61):
print("Percentage =",p,"%"."\n""Grade B")
elif (p<90 and p>81):
print("Percentage =",p,"%"."\n""Grade A2")
elif (p<=100 and p>91):
print("Percentage =",p,"%"."\n""Grade A1")
else:
print(end="")