Table:
text: United States Senate elections, 1986
Senate composition before the elections
Senate composition before the elections
D_41 D_42 D_43 D_44 D_45 D_46 D_47 R_53 R_52 R_51
R 41 R 42 R 43 R 44 R 45 R 46 R 47 R 48 R 49 R 50
R 40 R 39 R 38 R 37 R 36 R 35 R 34 R 33 R 32 R 31
R 21 R 22 R 23 R 24 R 25 R 26 R 27 R 28 R 29 R 30
R 20 R 19 R 18 R 17 R 16 R 15 R 14 R 13 R 12 R 11
R 1 R 2 R 3 R 4 R 5 R 6 R 7 R 8 R 9 R 10

Question: Tell me the pre-election composition of the Senate in the 1986 United States election. What is the D 41 and R 51 in r 11 ?