0_0_10706001_4331.cpp: In function `int main()':
0_0_10706001_4331.cpp:31: error: `sum13' undeclared (first use this function)
0_0_10706001_4331.cpp:31: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_10706001_4331.cpp:42: error: expected `)' before numeric constant
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