/in/foo.c: In function 'main':
/in/foo.c:13:17: warning: conversion lacks type at end of format [-Wformat=]
   13 |         scanf("%l", &L);
      |                 ^
/in/foo.c:13:15: warning: too many arguments for format [-Wformat-extra-args]
   13 |         scanf("%l", &L);
      |               ^~~~