S =   (`_) -Y C
S =   (`_) -Y C
S =   (`_) -Y C
S =   (`_) -Y C
S =   (`_) -Y C
S =   (`_) -Y C
..:*
@linviena
S =   (`_) -Y C
@linviena
S =   (`_) -Y C
@linviena
S =   (`_) -Y C