val i=readInt
val j=i/2
var s,t=""
for(k<-0 to j-1;u=" "*(~k+j))s+=u+"/ "+" "*k*2+"\\"+u+'
'
s+=(("|"+" "*(j-1))*2+"|\n")*j
for(k<-0 to j)t+=" "*i+'
'updated(~k+i-k/(j/2+1)*j,'/')updated(k,'\\')updated(k+j,'\\')
print(s+t+s.reverse.tail)