anagram Batch , stdin/stdout

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Do note that this website only supports submissions in C++.

Read in an integer 0 < n < 8, and output all permutations of the integers 1..n, in ascending order, one on each line.

Sample Input 1

12
21

Subtask	Score	#TC	Time	Memory	Scoring
1	100	5	1s	32MB	Average
2	0	2	1s	32MB	Average

g++-7 ans.cpp -o anagram -Wall -static -O2 -lm -m64 -s -w -std=gnu++17 -fmax-errors=512