10
max(a[1],a[2])
min(a[1],a[2])
max(max(a[1],a[2]),a[3])
max(min(a[1],a[2]),a[3])
min(max(a[1],a[2]),a[3])
min(min(a[1],a[2]),a[3])
max(a[1],max(a[2],a[3]))
max(a[1],min(a[2],a[3]))
min(a[1],max(a[2],a[3]))
min(a[1],min(a[2],a[3]))