#version 460
#extension GL_EXT_long_vector : enable

layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;

layout(set = 0, binding = 0, std430) buffer InBuf {
    vector<int, 12> vals[];
} inbuf;

layout(set = 0, binding = 1, std430) buffer OutBuf {
    int out_len;
    int out_last;
} outbuf;

void main()
{
    int n = inbuf.vals.length();
    outbuf.out_len = n;
    outbuf.out_last = inbuf.vals[n - 1][11];
}