View Compilation Error

0_0_32526579_14669.cpp: In function 'int main()':
0_0_32526579_14669.cpp:15:4: error: 'aaa' was not declared in this scope
 if(aaa==bbb+ccc+ddd)
    ^
0_0_32526579_14669.cpp:15:9: error: 'bbb' was not declared in this scope
 if(aaa==bbb+ccc+ddd)
         ^
0_0_32526579_14669.cpp:15:13: error: 'ccc' was not declared in this scope
 if(aaa==bbb+ccc+ddd)
             ^
0_0_32526579_14669.cpp:15:17: error: 'ddd' was not declared in this scope
 if(aaa==bbb+ccc+ddd)
                 ^