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const print = @import("std").debug.print;
const input = @embedFile("input");
const mean = @splat(12, @as(u16, '0' * 1000 + 500));
const pos = @Vector(12, u4){ 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0 };
pub fn main() !void {
var sum = @splat(12, @as(u16, 0));
var i = @as(usize, 0);
while (i < input.len) : (i += 13) {
var j = @as(usize, 0);
while (j < 12) : (j += 1)
sum[j] += input[i + j];
}
const common = @bitCast(@Vector(12, u1), sum > mean);
const gamma = @reduce(.Add, @as(@Vector(12, u12), common) << pos);
print("{}\n", .{ @as(usize, gamma) * ~gamma });
}
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