Codeforces Round 597 (Div. 2)
A
Good ol' Numbers Coloring
Codeforces
1000
原题
←B →
翻译中…

Consider the set of all nonnegative integers: ${0, 1, 2, \dots}$. Given two integers $a$ and $b$ ($1 \le a, b \le 10^4$). We paint all the numbers in increasing number first we paint $0$, then we paint $1$, then $2$ and so on.

翻译中…

Each number is painted white or black. We paint a number $i$ according to the following rules:

翻译中…
  • if $i = 0$, it is colored white;
  • if $i \ge a$ and $i - a$ is colored white, $i$ is also colored white;
  • if $i \ge b$ and $i - b$ is colored white, $i$ is also colored white;
  • if $i$ is still not colored white, it is colored black.
翻译中…

In this way, each nonnegative integer gets one of two colors.

翻译中…

For example, if $a=3$, $b=5$, then the colors of the numbers (in the order from $0$) are: white ($0$), black ($1$), black ($2$), white ($3$), black ($4$), white ($5$), white ($6$), black ($7$), white ($8$), white ($9$), ...

翻译中…

Note that:

翻译中…
  • It is possible that there are infinitely many nonnegative integers colored black. For example, if $a = 10$ and $b = 10$, then only $0, 10, 20, 30$ and any other nonnegative integers that end in $0$ when written in base 10 are white. The other integers are colored black.
  • It is also possible that there are only finitely many nonnegative integers colored black. For example, when $a = 1$ and $b = 10$, then there is no nonnegative integer colored black at all.
翻译中…

Your task is to determine whether or not the number of nonnegative integers colored black is infinite.

翻译中…

If there are infinitely many nonnegative integers colored black, simply print a line containing "Infinite" (without the quotes). Otherwise, print "Finite" (without the quotes).

翻译中…

Input

翻译中…

The first line of input contains a single integer $t$ ($1 \le t \le 100$) — the number of test cases in the input. Then $t$ lines follow, each line contains two space-separated integers $a$ and $b$ ($1 \le a, b \le 10^4$).

翻译中…

Output

翻译中…

For each test case, print one line containing either "Infinite" or "Finite" (without the quotes). Output is case-insensitive (i.e. "infinite", "inFiNite" or "finiTE" are all valid answers).

翻译中…

样例

Input #1
4
10 10
1 10
6 9
7 3
Output #1
Infinite
Finite
Infinite
Finite
InputCopy OutputCopy
题目信息
题号
1245A
时间限制
1 s
内存限制
256 MB
标签
数学
数论

题面与样例版权归 Codeforces 及出题人所有;中文翻译由 AI 生成(CI 管线),如有出入请以原文为准。