/in/foo.cc: In function 'void mainful()':
/in/foo.cc:90:32: warning: format '%lld' expects argument of type 'long long int*', but argument 2 has type 'long long int' [-Wformat=]
    scanf("%lld%lld", l666, r666);
                                ^
/in/foo.cc:90:32: warning: format '%lld' expects argument of type 'long long int*', but argument 3 has type 'long long int' [-Wformat=]
/in/foo.cc:91:4: warning: 'r666' may be used uninitialized in this function [-Wmaybe-uninitialized]
    if(l666>r666) {
    ^~
/in/foo.cc:91:4: warning: 'l666' may be used uninitialized in this function [-Wmaybe-uninitialized]