j, m, b = map(int, input().split(','))
T = j + m + b
A = (T * 100) // 3 / 100.0

def format_avg(a):
    s = "{0:.2f}".format(a)
    if s.endswith('00'):
        return "{0:.1f}".format(a)
    elif s.endswith('0'):
        return s[:-1]
    else:
        return s

formatted_A = format_avg(A)
print(f'合計点:{T}平均点:{formatted_A}')