text: const fs = require('fs');
  const filePath = process.platform === 'linux' ? '/dev/stdin' : './input.txt';
  let input = fs.readFileSync(filePath).toString().split('\n');
  const input1 = +input[0];
  const input2 = [];
  for (let i = 1; i <= input1; i++) {
      input2.push( input[i].split(" ").map((item) => +item));
  }
  
  solution(input1, input2);
  
  function solution(T, testCaseArray) {
      for(let i = 0; i < T; i++) {
          const a = testCaseArray[i];
          const b = a[0];
          const c = a[1];
          console.log(`Case #${i+1}: ${b} + ${c} = ${b+c}`);
      }
  }
  