const numbers = [];
const n = +gets();

for (let i = 0; i < n; i++) {
  const currentNumber = gets();

  numbers.push(currentNumber);
}

const merged = [];
const squashed = [];

for (let i = 0; i < numbers.length - 1; i++) {
  const currentNum = numbers[i];
  const nextNum = numbers[i + 1];

  const mergedNum = currentNum[1] + nextNum[0];

  const d1 = currentNum[0];
  const d2 = currentNum[1];
  const d3 = nextNum[0];
  const d4 = nextNum[1];

  const squashedNum = d1 + (Number(d2) + Number(d3)) % 10 + d4;
  merged.push(mergedNum);
  squashed.push(squashedNum);
}

print(merged.join(' '));
print(squashed.join(' '));