eq(f1(A,B,C,D,E,F,G,H,I,J,K),1,[f2(A,B,C,D,E,F,G,L,M,M,L,N,O,P,Q,R,S,T,U,V,W,X,Y),loop_cont_f2(O,P,Q,R,S,T,U,V,W,X,Y)],[N=0]).
eq(f1(A,B,C,D,E,F,G,H,I,J,K),1,[f2(A,B,C,D,E,F,G,L,M,M,L,N,O,P,Q,R,S,T,U,V,W,X,Y)],[N=1]).
eq(f2(A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W),1,[f2(A,B,X,Y,Z,A1,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W)],[Z>=1,B>=1+A]).
eq(f2(A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W),1,[f2(A,B,X,Y,Z,A1,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W)],[0>=Z+1,B>=1+A]).
eq(f2(A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W),1,[f2(A,B,X,Y,0,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W)],[B>=1+A]).
eq(f2(A,B,C,D,E,F,G,H,I,J,K,L,A,B,M,N,E,F,O,H,I,J,K),1,[],[L=1,A>=B]).