const rl = require("readline").createInterface({ input: process.stdin }); var iter = rl[Symbol.asyncIterator](); const readline = async () => (await iter.next()).value; void (async function () { // Write your code here while ((line = await readline())) { if (!global.n) { const [n, m] = line.split(" ").map(Number); global.n = n; global.m = m; global.matrix = []; } else { const row = line.split(" ").map(Number); global.matrix.push(row); if (global.matrix.length === global.n) { const count = countDigistEndingWithNine(); console.log(count); } } function countDigistEndingWithNine() { let count = 0; for (let i = 0; i < global.n; i++) { for (let j = 0; j < global.m; j++) { if (global.matrix[i][j] % 10 === 9) count++; } } return count; } } })();