View Compilation Error

33101_0_20517.cpp
33101_0_20517.cpp(7) : error C2065: 'cin' : undeclared identifier
33101_0_20517.cpp(8) : error C2065: 'cout' : undeclared identifier
33101_0_20517.cpp(8) : warning C4554: '<<' : check operator precedence for possible error; use parentheses to clarify precedence
33101_0_20517.cpp(8) : error C2065: 'endl' : undeclared identifier
33101_0_20517.cpp(8) : warning C4552: '<<' : operator has no effect; expected operator with side-effect
33101_0_20517.cpp(9) : warning C4508: 'main' : function should return a value; 'void' return type assumed