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How far can you make a stack of cards overhang a table? If you have one card, you can create a maximum

overhang of half a card length. (We're assuming that the cards must be perpendicular to the table.) With two

cards you can make the top card overhang the bottom one by half a card length, and the bottom one overhang

the table by a third of a card length, for a total maximum overhang of 1/2 + 1/3 = 5/6 card lengths. In general

you can make n cards overhang by 1/2 + 1/3 + 1/4 + ... + 1/(n + 1) card lengths, where the top card overhangs

the second by 1/2, the second overhangs tha third by 1/3, the third overhangs the fourth by 1/4, etc., and the

bottom card overhangs the table by 1/(n + 1). This is illustrated in the figure below.

The input consists of one or more test cases, followed by a line containing the number 0.00 that signals the

end of the input. Each test case is a single line containing a positive floating-point number c whose value is at

least 0.01 and at most 5.20; c will contain exactly three digits.

For each test case, output the minimum number of cards necessary to achieve an overhang of at least c card

lengths. Use the exact output format shown in the examples.

```
1.00
3.71
0.04
5.19
0.00
```

```
3 card(s)
61 card(s)
1 card(s)
273 card(s)
```