View Compilation Error

0_0_22257661_25393.cpp: In function 'int main()':
0_0_22257661_25393.cpp:8:9: error: invalid conversion from 'int' to 'const char*' [-fpermissive]
 printf(a+b);
         ^
In file included from 0_0_22257661_25393.cpp:1:0:
GCC4.9.2/x86_64-w64-mingw32/include/stdio.h:378:15: note: initializing argument 1 of 'int printf(const char*, ...)'
   int __cdecl printf(const char * __restrict__ _Format,...);
               ^