1 atom

t

ttttttttttttt[^[t[^[
ttttttttttttt[^[t[^[
ttttttttttttt[^[t[^[
ttttttttttttt[^[t[^[
ttttttttttttt[^[j[g
ttttttttttttt[^[t[^[
ttttttttttttt[^[t[^[
ttttttttttttt[^[t[^[
tttttttttttt
(i)
2 ttttttttttttt[
ttttttttttttt[^[t[^[
ttttttttttttt[^[t[^[
ttttttttttttt[^ttttttttttttt[^[t[^[
ttttttttttttt[^[t[^[
ttttttttttttt[^[t[^[
ttttttttttttt[^[t[^[
ttttttttttttt[^[j[g
ttttttttttttt[^[t[^[
ttttttttttttt[^[t[^[
ttttttttttttt[^[t[^[
tttttttttttt
(i)
3 ttttttttttttt[
ttttttttttttt[^[t[^[
ttttttttttttt[^[t[^[
ttttttttttttt[^[t[^[
ttttttttttttt[^[t[^[
ttttttttttttt[^[j[g
ttttttttttttt[^[t[^[
ttttttttttttt[^[t[^[
ttttttttttttt[^[t[^[
ttttttttttttttttttttttttt[^[t[^[
ttttttttttttt[^[t[^[
ttttttttttttt[^
(i)