a = int(input())
b = int(input())
c = int(input())
s = a + b + c
p = a * b * c
avg = s / 3
print(f"{a}+{b}+{c}={s}")
print(f"{a}*{b}*{c}={p}")
print(f"({a}+{b}+{c})/3={avg:.6f}")
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