Memory not freed:
-----------------
   Address     Size     Caller
0x092ee388      0x1  at AndreaSterbini/modulo2.c:375
0x092ee398      0x3  at AndreaSterbini/modulo2.c:375
0x092ee3a8      0x2  at AndreaSterbini/modulo2.c:375
0x092ee3b8     0x14  at AndreaSterbini/modulo2.c:375
0x092ee3d0      0x3  at AndreaSterbini/modulo2.c:375