#include <fstream>
#include <functional>
#include <iostream>
#include <list>
#include <map>
#include <memory>
#include <set>
#include <sstream>
#include <string>
#include <vector>
using namespace std;

int main(int argc, char const *argv[]) {
  //
  cout << "============== Rockchip gpio computer ==============" << endl;

  while (true) {
    int gpiopinNum = 0;
    printf("Please input gpio pin number: \n");
    scanf("%d", &gpiopinNum);
    int pingroup = gpiopinNum / 32;
    int pinsubgroup = gpiopinNum % 32 / 8;
    char pinsubgroup_c = 'A' + pinsubgroup;
    int pinoff = gpiopinNum % 8;

    printf("GPIO%d -> GPIO%d-%c%d\n", gpiopinNum, pingroup, pinsubgroup_c, pinoff);
  }

  return 0;
}