a(){ic b}
b(z){+ 1 z ? c m}
c(){ic d}
d(z){ic e z}
e(y,z){ic f y z}
f(x,y,z){ic g y z}
g(x,y,z){ic h x y z}
h(w,x,y,z){ic i x y z}
i(w,x,y,z){ic j x y z}
j(w,x,y,z){- z y ? k l x y}
k(x,y){oc x a}
l(x,y){oc y a}
m(){@ 0}
a