View Compilation Error

0_0_6348547_1615.cpp:22: error: `__int6' does not name a type
0_0_6348547_1615.cpp: In function `int main()':
0_0_6348547_1615.cpp:34: error: `sum1' undeclared (first use this function)
0_0_6348547_1615.cpp:34: error: (Each undeclared identifier is reported only once for each function it appears in.)