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

bool solution(char board[9][9]) {
    bool rows[9][10] = {false}; // digits 1-9 for each row
    bool cols[9][10] = {false}; // digits 1-9 for each column
    bool boxes[9][10] = {false}; // digits 1-9 for each box
    
    for (int r = 0; r < 9; r++) {
        for (int c = 0; c < 9; c++) {
            if (board[r][c] == '.') {
                continue;
            }
            
            int digit = board[r][c] - '0';
            int boxIndex = (r / 3) * 3 + c / 3;
            
            if (rows[r][digit] || cols[c][digit] || boxes[boxIndex][digit]) {
                return false;
            }
            
            rows[r][digit] = true;
            cols[c][digit] = true;
            boxes[boxIndex][digit] = true;
        }
    }
    
    return true;
}

int main() {
    char line[1000];
    fgets(line, sizeof(line), stdin);
    
    char board[9][9];
    int row = 0, col = 0;
    
    for (int i = 0; line[i] != '\0'; i++) {
        if (line[i] == '.' || (line[i] >= '1' && line[i] <= '9')) {
            board[row][col++] = line[i];
            if (col == 9) {
                col = 0;
                row++;
            }
        }
    }
    
    bool result = solution(board);
    printf(result ? "true\n" : "false\n");
    return 0;
}