Buat formulae sendiri ??

PERUT = 1
= 3/3
Makanan = 1/3
Udara = 1/3
Minuman = 1/3
Maka, Makanan + Udara + Minuman = 3/3 = 1
Perut = Makanan + Udara + Minuman = 1

Perut = MUM = 1
Jika Perut = UU < 1 = Perut masuk angin;
Jika Perut = MUMMMMM ataupun MMMMMM > 1 = perut maju ke hadapan! Haha