View Compilation Error

0_0_27805327_3869.cpp: In function 'int main()':
0_0_27805327_3869.cpp:13:58: error: expected primary-expression before '!=' token
            else if(a[j]!='A'&&a[j]!='E'&&a[j]!='I'&&a[j]=!='O'&&a[j]!='U'&&a[j]>='A'&&a[j]<='Z') a[j]=a[j]-'A'+'a';
                                                          ^