/in/foo.cc: In function 'int main()':
/in/foo.cc:8:29: warning: format '%d' expects argument of type 'int*', but argument 2 has type 'long long int*' [-Wformat=]
     scanf("%I64d%I64d",&n,&m);
                             ^
/in/foo.cc:8:29: warning: format '%d' expects argument of type 'int*', but argument 3 has type 'long long int*' [-Wformat=]
/in/foo.cc:13:37: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long long int' [-Wformat=]
     printf("%I64d\n",ways%1000000007);
                                     ^