0_0_4032170_29582.cpp: In function `int main()':
0_0_4032170_29582.cpp:24: error: `sy' undeclared (first use this function)
0_0_4032170_29582.cpp:24: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_4032170_29582.cpp:24: error: expected `;' before '}' token
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