#include <stdio.h>
#include <stdlib.h>
#include <string.h>

char rotation[10][10] = {
  "",
  ".,!? ",
  "abc",
  "def",
  "ghi",
  "jkl",
  "mno",
  "pqrs",
  "tuv",
  "wxyz"
};

int main()
{
  int N, I;
  int i, len;
  char s[1024];
  int button, sequence;

  gets(s); N = atoi(s);
  for (I = 0; I < N; I++) {
    gets(s); len = strlen(s);

    button = sequence = -1;
    for (i = 0; i < len; i++) {
      if (s[i] == '0') {
        if (button > 0) {
          printf("%c", rotation[button][sequence % strlen(rotation[button])]);
        }
        button = sequence = -1;
      }
      else {
        button = s[i] - '0';
        sequence++;
      }
    }
    printf("\n");
  }
  return 0;
}