S1 + S2 -> S30 S2 -> S3 S3 -> S2 S29 -> S29 + S3 S3 -> S31 S4 -> S32 S4 -> S33 S7 -> S8 S8 -> S7 S9 -> S8 S8 -> S9 S15 -> S34 S10 -> S35 S11 -> S12 S12 -> S11 S28 -> S11 + S28 S11 -> S31 S6 -> S36 S4 -> S33 S14 -> S37 S15 -> S38 S19 -> S39 S16 -> S40 S17 -> S41 S18 -> S42 S23 -> S43 S24 -> S44 S25 -> S45 S26 -> S46 S27 -> S47 S20 -> S48 S30 -> S1 + S2 S30 -> S49 S32 -> S4 S33 -> S4 S32 + S5 -> S50 S38 -> S51 S34 -> S15 S35 -> S10 S36 -> S6 S37 -> S14 S34 -> S51 S38 -> S15 S39 -> S19 S40 -> S16 S41 -> S17 S42 -> S18 S43 -> S23 S20 + S32 -> S52 S22 + S32 -> S53 S44 -> S24 S45 -> S54 S46 -> S26 S47 -> S27 S47 -> S55 S48 -> S20 S1 + S49 -> S56 S49 -> S1 + S2 S49 -> S57 S50 -> S32 + S5 S51 -> S38 S51 -> S34 S21 + S49 -> S58 S20 + S50 -> S59 S52 -> S20 + S32 S53 -> S22 + S32 S54 -> S25 S55 -> S47 S52 -> S20 + S32 S53 -> S22 + S32 S56 -> S1 + S49 S56 -> S60 S57 -> S49 S57 -> S3 S21 + S56 -> S61 S58 -> S21 + S49 S59 -> S20 + S50 S59 -> S20 + S50 S58 -> S21 + S49 S60 -> S56 S60 -> S3 S61 -> S21 + S56 S61 -> S21 + S56