소프티어

const fs = require('fs');


let input = fs.readFileSync('input.txt', 'utf8').trim().split('\n').map(line => line.split(' ').map(Number));


let result = 10


for (let i = 0; i < 3; i++) {
    for (let j = 1; j <= 3; j++) {
        const min1 = Math.abs(input[i][0] - j) + Math.abs(input[i][1] - j) + Math.abs(input[i][2] - j)
        const min2 = Math.abs(input[0][i] - j) + Math.abs(input[1][i] - j) + Math.abs(input[2][i] - j)
        result = Math.min(result, min1, min2);
    }
}


console.log(result);