View Compilation Error

0_0_10833992_30251.cpp:1: error: `Input' does not name a type
0_0_10833992_30251.cpp:1: error: expected constructor, destructor, or type conversion before '&' token
0_0_10833992_30251.cpp:1: error: expected `,' or `;' before '&' token
0_0_10833992_30251.cpp:1: error: expected unqualified-id before '=' token
0_0_10833992_30251.cpp:1: error: expected `,' or `;' before '=' token