close
void f(int n,char a,char b ,char c) {
if(n==1){
printf("%d從%c移到%c\n",n,a,c);
}else{
f(n-1,a,c,b);
f(1,a,b,c);
f(n-1,b,a,c);
}
}
int main()
{
int d;
cin>>d;
f(d,'a','b','c');
cout<<e;
}
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