import math

# Read input
j, m, b = map(int, input().split(','))
sum_t = j + m + b

# Calculate average
if sum_t % 3 == 0:
    a = sum_t // 3
    a_str = f"{a}.0"
else:
    average = sum_t / 3
    a_floored = math.floor(average * 100) / 100
    a_str = f"{a_floored:.2f}"

# Output the result
print(f"合計点:{sum_t}平均点:{a_str}")