netcdf synth3 {
types:
  compound S1_t {
    int v1(3) ;
  }; // S1_t
dimensions:
	S1_0 = 2 ;
variables:
	S1_t S1(S1_0) ;
data:

 S1 = {{132, 232, 332}}, {{432, 532, 632}} ;
}