#include<iostream> // cin\cout\endl #include<cstdio> //scanf()\printf() #include<cstring> // strcpy()\strcat()\strcmp()\strlen()\memset() #include<cmath> //sqrt()\pow()\abs()\ceil()\floor()\max()\min() using namespace std; int main(){ int m;//m钱 int cnt=0; cin>>m; for(int i=0;i<=m/5;i++){//公鸡 for(int j=0;j<=m/3;j++){//母鸡 for(int k =0;k<=m;k+=3){//小鸡 if(k%3==0 && (5*i+3*j+k/3) == m && i+j+k ==m){ cout<<++cnt<<": "<<i<<","<<j<<","<<k<<endl; } } } } if(cnt==0) cout<<"None"<<endl; return 0; }