foo.cpp:5:5: error: stray '\241' in program
     int a,aa、,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z;
     ^
foo.cpp:5:5: error: stray '\242' in program
foo.cpp:18:5: error: stray '\243' in program
     k=j；
     ^
foo.cpp:18:5: error: stray '\273' in program
foo.cpp: In function 'int main()':
foo.cpp:19:5: error: expected ';' before 'l'
     l=k;
     ^