def to_type(off):
return chr(ord('A') + off)
for i in range(0, 17):
for j in range(0, 17):
if i + j > 16:
continue
rhs = [to_type(x) for x in range(0, i)]
lhs = [to_type(x + i) for x in range(0, j)]
print "merge_impl!{[%s] [%s]}" % (", ".join(rhs), ", ".join(lhs))