RosettaCodeData/Task/Mutual-recursion/FOCAL/mutual-recursion.focal

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01.01 C--PRINT F(0..15) AND M(0..15)
01.10 T "F(0..15)"
01.20 F X=0,15;S N=X;D 4;T %1,N
01.30 T !"M(0..15)"
01.40 F X=0,15;S N=X;D 5;T %1,N
01.50 T !
01.60 Q
04.01 C--N = F(N)
04.10 I (N(D)),4.11,4.2
04.11 S N(D)=1;R
04.20 S D=D+1;S N(D)=N(D-1)-1;D 4;D 5
04.30 S D=D-1;S N(D)=N(D)-N(D+1)
05.01 C--N = M(N)
05.10 I (N(D)),5.11,5.2
05.11 R
05.20 S D=D+1;S N(D)=N(D-1)-1;D 5;D 4
05.30 S D=D-1;S N(D)=N(D)-N(D+1)