const [t, ...rest] = require('fs')
.readFileSync('./input/11021.txt')
.toString()
.split('\n');
let result = '';
for (let i = 0; i < Number(t); i++) {
const [a, b] = rest[i].split(' ').map(Number);
result += `Case #${i + 1}: ${a} + ${b} = ${a + b} \n`;
}
console.log(result);