View Compilation Error

22748_0_20567.cpp: In function `int main()':
22748_0_20567.cpp:9: error: expected init-declarator before "while"
22748_0_20567.cpp:9: error: expected `,' or `;' before "while"
22748_0_20567.cpp:13: error: `sum' undeclared (first use this function)
22748_0_20567.cpp:13: error: (Each undeclared identifier is reported only once for each function it appears in.)
22748_0_20567.cpp:19: error: `ruturn' undeclared (first use this function)
!B4