#include <iostream>
using namespace std;
int main(){
  int m = 10;
  int n = 10;
  char board[m][n] = {"a","bcd","efghi"};
  int y = 3; // 行数
  int x[m] = {1,3,5}; // 各行の長さ
  for(int i=0; i<y-1; ++i){
    for(int j=i+1; j<y; ++j){
      for(int k=x[i]; k<x[j]; ++k)
        board[i][k] = board[j][k];
      swap(x[i], x[j]);
    }
  }
  for(int k=0; k<y; ++k){
    for(int l=0; l<x[k]; ++l)
      cout << board[k][l];
    cout << endl;
  }
  return 0;
}

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