View Compilation Error

0_0_35136991_23130.cpp: In function 'void DFS(long long int, long long int)':
0_0_35136991_23130.cpp:20:16: error: expected statement at end of input
         if(x!=0)//第一个数字前不能加“-"号            DFS(i+1,sum-k);    }}int main(){    while(scanf("%s %I64d",str,&n)!=EOF)    {        len=strlen(str);        num=0;        DFS(0,0);        printf("%I64d\n",num);    }    return 0;}
                ^
0_0_35136991_23130.cpp:20:16: error: expected '}' at end of input
0_0_35136991_23130.cpp:20:16: error: expected '}' at end of input