title: Program Circumference Parallelogram
signature: program_circumference_parallelogram <- function(a, b) {
source_py: def program_circumference_parallelogram(a, b):
      return ((2 * a) + (2 * b))
source_cpp: float program_circumference_parallelogram(float a, float b) {
    return ( ( 2 * a ) + ( 2 * b ) );
  }