21o
1=3o
1=7
1=756
3oo15ooo
48oo75o3
8o11
1
12o
1=562=56-12=44=22
1=81=7
11115o
1ooo
4oooo2oooo1oooo
4oooo
1oooo
1oo1ooo1oooo1ooooo3o3oooo
3oo
11