R & D often refers to "research and development". This refers to the investigation and creation of new products by a company.
D in blackberry messenger means Delivered and R means Read!!
If you mean d*r = r*d (where * means multiply_ then it is the commutative property.
It means 'define the relationship'
park
g h plus r d g is the sister of (h plus (r is a sister of d)) g is the sister of h is the father of r is the sister of d so g is d's aunt.
Retarded (means mentally challenged.)
A b r i d g e d
L,L,L,D,R,U,R,R,D,D,D,L,D,D,L,L,U,L,U,R,L,L,L,D,R,U,R,R,D,D,R,R,U,U,R,U,U,U, L,L,L,D,D,D,L,L,L,U,U,R,R,L,L,D,D,R,R,R,U,U,R,U,R,R,D,D,D,L,D,D,L,L,U,U,L,L,L, U,U,R,R,R,R,R,U,R,D,L,L,L,L,L,L,D,D,R,R,R,D,D,R,R,U,U,L,L,L,L,D,L,U,D,R,R.
U: Up D: Down L: Left R:Right The solution to the maze is: D-R-U-R-R-R-R-D-R D-L-D-L-L-L-L-D-L-D D-D-R-R-R-U-R-R-R-R U-L-U-R-R-R-D-D-D
In the answer, r is right l is left u is up d is down ------------- r u u r l u u u u u r u u d d r r r r d d r d l u r r d r r u r r d d d d d r r u u l d r d l u ------------- and your done
R,u,u,l,d,l,l,u,l,l,d,l,l,u,r,u,u,r,u,r,r,r,r,u,r,d,l,d,d,d,r,d,d,l,u,l,l,u,u,u,d,d,l,l,d,l,l, u,r,u,u,r,u,r,r,r,r,l,l,d,d,d,d,r,r,u,u,u,u,d,d,d,d,l,l,u,r,d,r,u,u,u,d,d,l,l,u,u,u,l,l,d,r, l,l,d,d,r,r,r,r,d,r,u,u,d,l,l,u,u,l,u,r.
U- Up D- down L- Left R- Right R,U,U,R,U,R,D,D,U,L,L,D,D,L,L,L,L,U,U,R,R,R,R,R,U,R,D,L,L,L,L,D,U,L,L,D,D,R,R,R,R,U,U,L,L,L, U,U,R,R,D,U,L,L,D,D,R,D,D,R,R,U,U,R,U,L,D,D,D,L,L,U,U,R,R,U,R,R,D,L,U,L,D,D,U,L,L,L,U,U,R,R, D,U,L,L,D,D,R,R,U,R,D.