exam_score = 85
program_of_study = 'Electrical Engineering'

if program_of_study == 'Computer Science':
    if exam_score >= 90:
        letter_grade = 'A'
    elif exam_score >= 80:
        letter_grade = 'B'
    elif exam_score >= 70:
        letter_grade = 'C'
    elif exam_score >= 60:
        letter_grade = 'D'
    else:
        letter_grade = 'F'
elif program_of_study == 'Electrical Engineering':
    if exam_score >= 85:
        letter_grade = 'A'
    elif exam_score >= 75:
        letter_grade = 'B'
    elif exam_score >= 65:
        letter_grade = 'C'
    elif exam_score >= 55:
        letter_grade = 'D'
    else:
        letter_grade = 'F'
else:
    letter_grade = 'N/A'

print('Your letter grade is:', letter_grade)

                transaction_amount = 7500
membership_level = "Gold"

if membership_level == "Gold":
    if transaction_amount <= 2000:
        transaction_fee = 15
    elif transaction_amount <= 10000:
        transaction_fee = 10
    else:
        transaction_fee = 0
elif membership_level == "Silver":
    if transaction_amount <= 2000:
        transaction_fee = 20
    elif transaction_amount <= 10000:
        transaction_fee = 15
    else:
        transaction_fee = 5
else:
    transaction_fee = 25

print("Transaction fee:", transaction_fee)

                cpu_usage = 85              # in percentage
memory_utilization = 70     # in percentage

if cpu_usage > 90:
    if memory_utilization > 80:
        performance_level = "Poor"
    else:
        performance_level = "Moderate"
elif cpu_usage > 70:
    if memory_utilization > 75:
        performance_level = "Moderate"
    else:
        performance_level = "Good"
else:
    if memory_utilization > 70:
        performance_level = "Good"
    else:
        performance_level = "Excellent"

print("Performance level:", performance_level)

                cpu_usage = 85              # in percentage
memory_utilization = 76     # in percentage

if cpu_usage > 90:
    if memory_utilization > 80:
        performance_level = "Poor"
    else:
        performance_level = "Moderate"
elif cpu_usage > 70:
    if memory_utilization > 75:
        performance_level = "Moderate"
    else:
        performance_level = "Good"
else:
    if memory_utilization > 70:
        performance_level = "Good"
    else:
        performance_level = "Excellent"

print("Performance level:", performance_level)

                cpu_usage = 40              # in percentage
memory_utilization = 95     # in percentage

if cpu_usage > 90:
    if memory_utilization > 80:
        performance_level = "Poor"
    else:
        performance_level = "Moderate"
elif cpu_usage > 70:
    if memory_utilization > 75:
        performance_level = "Moderate"
    else:
        performance_level = "Good"
else:
    if memory_utilization > 70:
        performance_level = "Good"
    else:
        performance_level = "Excellent"

print("Performance level:", performance_level)