n/6
30*
n/4
45*
n/3
60*
n/2
90*
2n/3
120*
3n/4
135*
5n/6
150*
n
180*
7n/6
210*
5n/4
225*
4n/3
240*
3n/2
270*
5n/3
300*
7n/4
315*
11n/6
330*
2n
360*
n/6
30*
n/4
45*
n/3
60*
n/2
90*
2n/3
120*
3n/4
135*
5n/6
150*
n
180*
7n/6
210*
5n/4
225*
4n/3
240*
3n/2
270*
5n/3
300*
7n/4
315*
11n/6
330*
2n
360*