'''scores = [99, 65, 45, 89, 23,57,90, 72]

for score in scores:

if score < 70:

print("score is::", score, "::It's fail")

if score == 70 and score <=80:

print("score is::", score, "SCORE is :C")

if score >=80 and score <=90:

print("score is::", score, "Score is :B")

if score >90:

print("score is::", score, "Score is :A")

'''

scores = [99, 65, 45, 89, 23, 57, 90, 72]

length = len(scores)

i = 0

while i < length:

if scores[i] < length:

print("score is::", scores, "::It's fail")

elif scores[i] == 70 and scores[i] <= 80:

print("score is::", scores, "SCORE is :C")

elif 80 <= scores[i] <= 90:

print("score is::", scores, "Score is :B")

elif scores[i] > 90:

print("score is::", scores, "Score is :A")

i = i + 1