function processData(input) {
    var inputs = (input.split("\n"));
    var square = [inputs[0].split(" "), inputs[1].split(" "), inputs[2].split(" ")];
    if (is_magic(square)) {
        console.log(0);
    }
    else {
        console.log(1);
    }
} 

function is_magic(square) {
    magic = true;
    for (var i=0; i<3; i++) {
        for (var j=0; j<3; j++) {
            if ((square[i][j] < 1) || (square[i][j] > 9)) {
                magic = false;
            }
        }
    }
    if ((square[0][0]*square[0][1]*square[0][2]) == (square[1][0]*square[1][1]*square[1][2]) == (square[2][0]*square[2][1]*square[2][2]) == (square[0][0]*square[1][0]*square[2][0]) == (square[0][1]*square[1][1]*square[2][1]) == (square[0][2]*square[1][2]*square[2][2]) == (square[0][0]*square[1][1]*square[2][2]) == (square[0][2]*square[1][1]*square[2][0])) {
        var useless = 0;
    }
    else {
        magic = false;
    }
    return magic;
}

process.stdin.resume();
process.stdin.setEncoding("ascii");
_input = "";
process.stdin.on("data", function (input) {
    _input += input;
});

process.stdin.on("end", function () {
   processData(_input);
});