#include <stdio.h>
#include <string>
using namespace std;
int main() {
    int n;
    cin >> n;
    string mapping[] = {
"", //0
"", //1
"A,B,C",//2
"DEF", //3
"GHI", //4
"JKL", //5
"MNO", //6
"PQRS", //7
"TUV", //8
"WXYZ", //9
};
string s = mapping[n];
count << "[";
for (int i = 0; i < s.length(); i++) {
    count << s[i];
    if (i != s.length() - 1)
        count << ", ";
}
count << "]";
return 0;
}