View Compilation Error

0_0_26121926_6193.cpp:54:2: error: 'p' does not name a type
  p=Mul(p,matb);
  ^
0_0_26121926_6193.cpp:55:2: error: expected unqualified-id before 'return'
  return p;
  ^
0_0_26121926_6193.cpp:56:1: error: expected declaration before '}' token
 }
 ^