a = [-2, -3, 4, -1, -2, 1, 5, -3]
mth = 0
maxi = 0
for i in a:
mth = mth + i
if(mth < 0):
mth = 0
elif(mth > maxi):
maxi = mth
print(maxi)
YSA9IFstMiwgLTMsIDQsIC0xLCAtMiwgMSwgNSwgLTNdCm10aCA9IDAKbWF4aSA9IDAKZm9yIGkgaW4gYToKICAgIG10aCA9IG10aCArIGkKICAgIGlmKG10aCA8IDApOgogICAgICAgIG10aCA9IDAKICAgIGVsaWYobXRoID4gbWF4aSk6CiAgICAgICAgbWF4aSA9IG10aApwcmludChtYXhpKQo=