a = float(input())
min = 21
maks = 0
suma = 0
while a != 0:
if a < min: min = a
if a > maks: maks = a
suma = suma + a
a = float(input())
print(suma-min-maks)
YSA9IGZsb2F0KGlucHV0KCkpCm1pbiA9IDIxCm1ha3MgPSAwCnN1bWEgPSAwCndoaWxlIGEgIT0gMDoKCWlmIGEgPCBtaW46IG1pbiA9IGEKCWlmIGEgPiBtYWtzOiBtYWtzID0gYQoJc3VtYSA9IHN1bWEgKyBhCglhID0gZmxvYXQoaW5wdXQoKSkKcHJpbnQoc3VtYS1taW4tbWFrcykJ