View Compilation Error

0_0_27382366_5362.cpp: In function 'int main()':
0_0_27382366_5362.cpp:11:4: error: 'sum2' was not declared in this scope
    sum2+=i*i*i;
    ^
0_0_27382366_5362.cpp:13:4: error: 'sum1' was not declared in this scope
    sum1+=i*i;
    ^