View Compilation Error

0_0_35239694_11681.cpp:1:2: error: stray '#' in program
 =#include <bits/stdc++.h>
  ^
0_0_35239694_11681.cpp:1:1: error: expected unqualified-id before '=' token
 =#include <bits/stdc++.h>
 ^
0_0_35239694_11681.cpp: In function 'int main(int, const char**)':
0_0_35239694_11681.cpp:7:28: error: 'scanf' was not declared in this scope
  while (scanf("%d %d",&a,&b)==2)
                            ^
0_0_35239694_11681.cpp:8:20: error: 'printf' was not declared in this scope
   printf("%d\n",a+b);
                    ^