a=3

a[a]=10+1
a[a+1]=a[a]+1
a[1][2]=a[a+1]+1
a[3]=a[1][2]+1


print a[a]
if a[3]=14 then print "OK" else "ERR"
if a[1+2]=14 then print "OK" else "ERR"
if a[a]=14 then print "OK" else "ERR"


