158+262+138
375+219+381+225
5001ï¼247ï¼1021ï¼232
ï¼181+2564ï¼+2719
378+44+114+242+222
276+228+353+219
(375+1034)+(966+125)
(2130+783+270)+1017
99+999+9999+99999
7755ï¼(2187+755)
2214+638+286
3065ï¼738ï¼1065
899+344
2357ï¼183ï¼317ï¼357
2365ï¼1086ï¼214
497ï¼299
2370+1995
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