View Compilation Error

0_0_7283191_24085.cpp: In function `int main()':
0_0_7283191_24085.cpp:88: error: `Number' undeclared (first use this function)
0_0_7283191_24085.cpp:88: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_7283191_24085.cpp:88: error: expected `;' before "of"