Sum - 3#7598

Sum - 3

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Very easy

Calculate the sum of a sequence of numbers. Note: that $n$ is the option number.

$n = 1$ n = 1: $1/2 + 2/3 + 3/4 + 4/5 + 5/6 + 6/7 + 7/8 + 8/9 + 9/10 + 10/11$ 1/2 + 2/3 + 3/4 + 4/5 + 5/6 + 6/7 + 7/8 + 8/9 + 9/10 + 10/11

$n = 2$ n = 2: $1/2 + 3/4 + 5/6 + 7/8 + 9/10 + 11/12 + 13/14 + 15/16 + 17/18 + 19/20$ 1/2 + 3/4 + 5/6 + 7/8 + 9/10 + 11/12 + 13/14 + 15/16 + 17/18 + 19/20

$n = 3$ n = 3: $1/1 + 2/3 + 3/5 + 4/7 + 5/9 + 6/11 + 7/13 + 8/15 + 9/17 + 10/19$ 1/1 + 2/3 + 3/5 + 4/7 + 5/9 + 6/11 + 7/13 + 8/15 + 9/17 + 10/19

$n = 4$ n = 4: $2/3 + 4/5 + 6/7 + 8/9 + 10/11 + 12/13 + 14/15 + 16/17 + 18/19 + 20/21$ 2/3 + 4/5 + 6/7 + 8/9 + 10/11 + 12/13 + 14/15 + 16/17 + 18/19 + 20/21

$n = 5$ n = 5: $1/3 + 3/6 + 5/9 + 7/12 + 9/15 + 11/18 + 13/21 + 15/24 + 17/27 + 19/30$ 1/3 + 3/6 + 5/9 + 7/12 + 9/15 + 11/18 + 13/21 + 15/24 + 17/27 + 19/30

$n = 6$ n = 6: $1/2 + 2/5 + 3/8 + 4/11 + 5/14 + 6/17 + 7/20 + 8/23 + 9/26 + 10/29$ 1/2 + 2/5 + 3/8 + 4/11 + 5/14 + 6/17 + 7/20 + 8/23 + 9/26 + 10/29

Input

The only number $n$ , $1 \leq n \leq 6$ 1 \leq n \leq 6

Output

The value of the sum of the sequence with an accuracy of $0.01$

Examples

Example 1

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n = 1

1/2 + 2/3 + 3/4 + 4/5 + 5/6 + 6/7 + 7/8 + 8/9 + 9/10 + 10/11

n = 2

1/2 + 3/4 + 5/6 + 7/8 + 9/10 + 11/12 + 13/14 + 15/16 + 17/18 + 19/20

n = 3

1/1 + 2/3 + 3/5 + 4/7 + 5/9 + 6/11 + 7/13 + 8/15 + 9/17 + 10/19

n = 4

2/3 + 4/5 + 6/7 + 8/9 + 10/11 + 12/13 + 14/15 + 16/17 + 18/19 + 20/21

n = 5

1/3 + 3/6 + 5/9 + 7/12 + 9/15 + 11/18 + 13/21 + 15/24 + 17/27 + 19/30

n = 6

1/2 + 2/5 + 3/8 + 4/11 + 5/14 + 6/17 + 7/20 + 8/23 + 9/26 + 10/29

1 \leq n \leq 6