View Compilation Error

0_0_32630676_8250.cpp: In function 'int main()':
0_0_32630676_8250.cpp:34:44: error: 'sizeo' was not declared in this scope
   memset(a.mat,0,sizeof(a)),memset(b.mat,0,sizeo
                                            ^
0_0_32630676_8250.cpp:34:44: error: expected '}' at end of input
0_0_32630676_8250.cpp:34:44: error: expected '}' at end of input