View Compilation Error

433157_0_0_17901.cpp: In function `int main()':
433157_0_0_17901.cpp:14: error: `S' undeclared (first use this function)
433157_0_0_17901.cpp:14: error: (Each undeclared identifier is reported only once for each function it appears in.)
433157_0_0_17901.cpp:18: error: `L' undeclared (first use this function)