A road crosses a railway line at an angle of \(x = 27^{\circ}\). Find the angles of \(a\), \(b\) and \(c\).
 
YCIND_251021_7689_pic_32.png
 
\(a =\) \(^{\circ}\)
 
\(b =\) \(^{\circ}\)
 
\(c =\) \(^{\circ}\)