#include <stdio.h>
int main() {
int x;
if ( x>=90)
else if ( x>=80 )
else if ( x>=60 )
else if(x>100)
else
return 0;
}
I2luY2x1ZGUgPHN0ZGlvLmg+CgppbnQgbWFpbigpIHsKCWludCB4OwoJc2NhbmYoIiVkIiwmeCk7CglpZiAoIHg+PTkwKQoJCXByaW50ZigiIOaIkOe4vuOBr++8s+OBp+OBmVxuIik7CgllbHNlIGlmICggIHg+PTgwICkKCQlwcmludGYoIuaIkOe4vuOBr++8oeOBp+OBmSBcbiIpOwoJZWxzZSBpZiAoIHg+PTYwICkKCQlwcmludGYoIiDmiJDnuL7jga/vvKLjgafjgZlcbiIpOwoJZWxzZSBpZih4PjEwMCkKCSAgICBwcmludGYoIuS4jeato+OBp+OBmVxuIik7CgllbHNlCgkJcHJpbnRmKCIg5oiQ57i+44Gv77yk44Gn44GZXG4iKTsKCXJldHVybiAwOwp9Cg==