View Compilation Error

0_0_21844055_18538.cpp: In function 'int main()':
0_0_21844055_18538.cpp:3:13: error: expected primary-expression before '=' token
 #define mod =1e9+7;
             ^
0_0_21844055_18538.cpp:28:26: note: in expansion of macro 'mod'
             sum=(sum+kk)%mod;
                          ^
0_0_21844055_18538.cpp:3:13: error: expected primary-expression before '=' token
 #define mod =1e9+7;
             ^
0_0_21844055_18538.cpp:31:28: note: in expansion of macro 'mod'
         printf("%d\n",(sum+mod)%mod);
                            ^
0_0_21844055_18538.cpp:3:19: error: expected ')' before ';' token
 #define mod =1e9+7;
                   ^
0_0_21844055_18538.cpp:31:28: note: in expansion of macro 'mod'
         printf("%d\n",(sum+mod)%mod);
                            ^
0_0_21844055_18538.cpp:31:31: error: expected primary-expression before ')' token
         printf("%d\n",(sum+mod)%mod);
                               ^
0_0_21844055_18538.cpp:31:36: error: expected primary-expression before ')' token
         printf("%d\n",(sum+mod)%mod);
                                    ^