Answer:
Step-by-step explanation:
subject_1_marks=input("Enter first subject marks")
subject_2_marks=input("Enter Second subject marks")
if((subject_1_marks)**2 OR (subject_2_marks)**2) >30:
print(ERROR)
eIif( subject_1_marks+subject_2_marks>=54):
print(A)
eIif( subject_1_marks+subject_2_marks>=54 AND subject_1_marks+subject_2_marks<=48 ):
print(B)
eIif( subject_1_marks+subject_2_marks>=48 AND subject_1_marks+subject_2_marks<=42 ):
print(B)
eIif( subject_1_marks+subject_2_marks>=42 AND subject_1_marks+subject_2_marks<=36 ):
print(C)
elif( subject_1_marks+subject_2_marks<=36):
print(F)
else:
print(some thing is wrong)