A programmer is writing an algorithm to output and sum the quarterly performance figures for four regional branches of a retail business during three quarters of a year. Each branch has 3 sales figures recorded, making 12 historical records in total.

The algorithm in Figure 1 contains a logical error and does not process all of the sales figures.

Figure 1

1  regions ← ['North', 'East', 'South', 'West']
2  sales ← [120, 150, 130, 90, 110, 95, 200, 210, 205, 80, 85, 90]
3  totalSales ← 0
4  FOR i ← 0 TO 3
5      area ← regions[i]
6      OUTPUT 'Region: ', area
7      FOR j ← 0 TO 1
8          OUTPUT 'Quarterly Record: ', j + 1
9          val ← sales[i * 3 + j]
10         OUTPUT val
11         totalSales ← totalSales + val
12     ENDFOR
13 ENDFOR

How could the error in the algorithm in Figure 1 be corrected so that all sales figures are processed?