Snuke is buying a bicycle. The bicycle of his choice does not come with a bell, so he has to buy one separately.

He has very high awareness of safety, and decides to buy two bells, one for each hand.

The store sells three kinds of bells for the price of a, b and c yen (the currency of Japan), respectively. Find the minimum total price of two different bells.

Constraints

• $1 \leq a,b,c \leq 10000$
• a, b and c are integers.

Input

Input is given from Standard Input in the following format:

a b c

Output

Print the minimum total price of two different bells.

Examples

Input

700 600 780

Output

1300

Input

10000 10000 10000

Output

20000

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