+$RI_A = \U0001F1E6; # Trail ERTU
+$RI_B = \U0001F1E7; # Trail EGR
+$RI_C = \U0001F1E8; # Trail AHLNZ
+$RI_D = \U0001F1E9; # Trail EK
+$RI_E = \U0001F1EA; # Trail GS
+$RI_F = \U0001F1EB; # Trail IR
+$RI_G = \U0001F1EC; # Trail BR
+$RI_H = \U0001F1ED; # Trail KU
+$RI_I = \U0001F1EE; # Trail DLNT
+$RI_J = \U0001F1EF; # Trail OP
+$RI_K = \U0001F1F0; # Trail R
+$RI_L = \U0001F1F1; # Trail B
+$RI_M = \U0001F1F2; # Trail OXY
+$RI_N = \U0001F1F3; # Trail LO
+$RI_P = \U0001F1F5; # Trail LT
+$RI_R = \U0001F1F7; # Trail OU
+$RI_S = \U0001F1F8; # Trail AEGK
+$RI_T = \U0001F1F9; # Trail HRW
+$RI_U = \U0001F1FA; # Trail AS
+$RI_V = \U0001F1FB; # Trail N
+
+$RI_A_End = [\U0001F1EA \U0001F1F7 \U0001F1F9 \U0001F1FA]; # ERTU
+$RI_B_End = [\U0001F1EA \U0001F1EC \U0001F1F7]; # EGR
+$RI_C_End = [\U0001F1E6 \U0001F1ED \U0001F1F1 \U0001F1F3 \U0001F1FF]; # AHLNZ
+$RI_D_End = [\U0001F1EA \U0001F1F0]; # EK
+$RI_E_End = [\U0001F1EC \U0001F1F8]; # GS
+$RI_F_End = [\U0001F1EE \U0001F1F7]; # IR
+$RI_G_End = [\U0001F1E7 \U0001F1F7]; # BR
+$RI_H_End = [\U0001F1F0 \U0001F1FA]; # KU
+$RI_I_End = [\U0001F1E9 \U0001F1F1 \U0001F1F3 \U0001F1F9]; # DLNT
+$RI_J_End = [\U0001F1F4 \U0001F1F5]; # OP
+$RI_K_End = \U0001F1F7; # R
+$RI_L_End = \U0001F1E7; # B
+$RI_M_End = [\U0001F1F4 \U0001F1FD \U0001F1FE]; # OXY
+$RI_N_End = [\U0001F1F1 \U0001F1F4]; # LO
+$RI_P_End = [\U0001F1F1 \U0001F1F9]; # LT
+$RI_R_End = [\U0001F1F4 \U0001F1FA]; # OU
+$RI_S_End = [\U0001F1E6 \U0001F1EA \U0001F1EC \U0001F1F0]; # AEGK
+$RI_T_End = [\U0001F1ED \U0001F1F7 \U0001F1FC]; # HRW
+$RI_U_End = [\U0001F1E6 \U0001F1F8]; # AS
+$RI_V_End = \U0001F1F3; # N
+