R_D_SYNDROME
R_D_SYNDROME(SYN_QR_D, SYN_QR_X, y);
R_D_SYNDROME(SYN_PQR_D, SYN_PQR_X, z);
R_D_SYNDROME(GEN_PQR_D, GEN_PQR_C, r);
R_D_SYNDROME(SYN_R_D, SYN_R_X, x);
R_D_SYNDROME(SYN_PR_D, SYN_PR_X, y);