import std.stdio, std.array, std.string, std.conv, std.algorithm; import std.typecons, std.range, std.random, std.math, std.container; import std.numeric, std.bigint, core.bitop, std.bitmanip, std.regex; immutable int N = 60; immutable int K = 500; void main() { readln.split; auto L = readln.split.map!(to!int).array; auto A = N.iota.map!(_ => readln.chomp.map!(a => a == '1').array).array; int[][] ops; foreach (l; L) { int best_score = -100; int[] best_op = [-1, -1, -1, -1]; foreach (i; 0..N) { foreach (j; 0..N-l+1) { int score = 0; foreach (k; j..j+l) { score += A[i][k] ? 1 : -1; } if (score > best_score) { best_score = score; best_op = [i, j, i, j+l-1]; } } } foreach (j; 0..N) { foreach (i; 0..N-l+1) { int score = 0; foreach (k; i..i+l) { score += A[k][j] ? 1 : -1; } if (score > best_score) { best_score = score; best_op = [i, j, i+l-1, j]; } } } foreach (i; best_op[0]..best_op[2]+1) foreach (j; best_op[1]..best_op[3]+1) A[i][j] ^= 1; ops ~= best_op; } foreach (op; ops) op.map!(a => (a+1).to!string).join(" ").writeln; }