tapuru_risto = [(1, 2), (3, 4), (-1, 9)]
ittei_kei = 0

for kazu_kumi in tapuru_risto:
    ittei_kei += kazu_kumi[1]

print(ittei_kei)


tapuru_risto = [(1, 2), (3, 4), (-1, 9)]
ittei_kei = 0

for kazu_kumi in tapuru_risto:
    ittei_kei += kazu_kumi[1]

print(ittei_kei)

