View Compilation Error

0_0_1804421_22292.cpp: In function `int main()':
0_0_1804421_22292.cpp:5: error: `While' undeclared (first use this function)
0_0_1804421_22292.cpp:5: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_1804421_22292.cpp:5: error: expected `;' before '{' token
0_0_1804421_22292.cpp:8: error: expected `}' at end of input