def compare_region_length(r1, r2):
 r1 = r1()
 r2 = r2()
 s1 = (r1[1] - r1[0])
 s2 = (r2[1] - r2[0])
 return int((s2 - s1))

def compare_region_length ( r1 , r2 ) : r1 = r1 ( ) r2 = r2 ( ) s1 = ( r1 [ 1 ] - r1 [ 0 ] ) s2 = ( r2 [ 1 ] - r2 [ 0 ] ) return int ( ( s2 - s1 ) )
returns a negative .