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PRINT 1
PRINT 2 + 1
PRINT 3 + (2 + 1)
PRINT 4 + (3 + (2 + 1))
PRINT 5 + (4 + (3 + (2 + 1)))
PRINT 6 + (5 + (4 + (3 + (2 + 1))))
PRINT 7 + (6 + (5 + (4 + (3 + (2 + 1)))))
PRINT 8 + (7 + (6 + (5 + (4 + (3 + (2 + 1))))))
PRINT 9 + (8 + (7 + (6 + (5 + (4 + (3 + (2 + 1)))))))
PRINT 10 + (9 + (8 + (7 + (6 + (5 + (4 + (3 + (2 + 1))))))))
PRINT 11 + (10 + (9 + (8 + (7 + (6 + (5 + (4 + (3 + (2 + 1)))))))))
PRINT 12 + (11 + (10 + (9 + (8 + (7 + (6 + (5 + (4 + (3 + (2 + 1))))))))))
PRINT 13 + (12 + (11 + (10 + (9 + (8 + (7 + (6 + (5 + (4 + (3 + (2 + 1)))))))))))
PRINT 14 + (13 + (12 + (11 + (10 + (9 + (8 + (7 + (6 + (5 + (4 + (3 + (2 + 1))))))))))))
PRINT 15 + (14 + (13 + (12 + (11 + (10 + (9 + (8 + (7 + (6 + (5 + (4 + (3 + (2 + 1)))))))))))))
PRINT 16 + (15 + (14 + (13 + (12 + (11 + (10 + (9 + (8 + (7 + (6 + (5 + (4 + (3 + (2 + 1))))))))))))))
PRINT 17 + (16 + (15 + (14 + (13 + (12 + (11 + (10 + (9 + (8 + (7 + (6 + (5 + (4 + (3 + (2 + 1)))))))))))))))
PRINT 18 + (17 + (16 + (15 + (14 + (13 + (12 + (11 + (10 + (9 + (8 + (7 + (6 + (5 + (4 + (3 + (2 + 1))))))))))))))))
PRINT 19 + (18 + (17 + (16 + (15 + (14 + (13 + (12 + (11 + (10 + (9 + (8 + (7 + (6 + (5 + (4 + (3 + (2 + 1)))))))))))))))))
PRINT 20 + (19 + (18 + (17 + (16 + (15 + (14 + (13 + (12 + (11 + (10 + (9 + (8 + (7 + (6 + (5 + (4 + (3 + (2 + 1))))))))))))))))))
#1
#3
#6
#10
#15
#21
#28
#36
#45
#55
#66
#78
#91
#105
#120
#136
#153
#171
#190
#210