notes=1,fn,an,cn,an,fn,cn,fn,an,cn,fn,an,cn,en,an,en,cn,en,fn,an,en,fn,en,cn,en,an,cn,fn,an,en,an,cn,fn,en,an,cn,en,fn,an,fn,cn,en,gn,bn,gn,en,bn,gn,bn,en,bn,en,gn,bn,dn,fn,dn,fn,dn,bn,fn,bn,dn,fn,bn,en,bn,gn,dn,fn,bn,en,bn,fn,gn,dn,fn,en,gn,fn,en,fn,an,cn,fn,en,en,gn,bn,fn,dn,en,an,en,bn,fn,gn,dn,fn,cn,fn,