1. et u t r l
sr c u a
p a aps 3 5 7
l nt ios , , .
p a aps 2 4 6
l nt ios , , .
1
2
3
4
1
5
2
3
4
5
a
b
b
c
c
d
d
e
e
f
e c 11 0
s :0
a
f