What is the move code for Bloxorz level 18?

One solution is

R,D,L,U,R2,D,L,U,R3,U2,D2,L3,D,R,U,L2,D,R,U,R3,D2,U2,L3,D,L,U,R2,D,L,U2,R,D,L,

U,L2,D4,R2,L2,U4,R2,D,R,U,L,D2,R,U,L,D,R,U,R5,D3,R,U,L,D2,R,U,L,D,L,U,R

(see the related question)