Răspuns :
I cutie = a
II cutie = a + 22
a + a + 22 = 840
2*a = 818
a = 409
I cutie = 409
II cutie = 431 + 22 = 431
II cutie = a + 22
a + a + 22 = 840
2*a = 818
a = 409
I cutie = 409
II cutie = 431 + 22 = 431