#version 450

layout(local_size_x_id = 18, local_size_z_id = 19) in;
layout(local_size_x = 32, local_size_y = 32) in;

buffer bn {
    uint a;
} bi;

void main()
{
    bi.a = gl_WorkGroupSize.x * gl_WorkGroupSize.y * gl_WorkGroupSize.z;
}