Quirky Quantifiers

Input

The input contains a single integer a (10 ≤ a ≤ 999).

Output

Output 0 or 1.

Examples

Input

13

Output

1

Input

927

Output

1

Input

48

Output

0

inputFormat

Input

The input contains a single integer a (10 ≤ a ≤ 999).

outputFormat

Output

Output 0 or 1.

Examples

Input

13

Output

1

Input

927

Output

1

Input

48

Output

0

样例

13

1

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