View Compilation Error

0_0_34221244_12755.cpp: In function 'int main()':
0_0_34221244_12755.cpp:7:9: error: 'n' was not declared in this scope
 int SUM(n);
         ^
0_0_34221244_12755.cpp:14:1: error: 'retutn' was not declared in this scope
 retutn 0;
 ^