Note that 1 ≤ k ≤ 4, r + k - 1 ≤ 4 and c + k - 1 ≤ 4. 2009 Canadian Computing Competition, Stage 2Day 2, Problem 2: ParadeMay 9 is VE day, when the annual victory parade is held through Red Square. The next N lines contain three integers per line: r