String:
abc9 abc6 abc2 abc7 abc3 abc10 abc2 abc10 abc1 abc3 abc2 abc1 abc4 abc4 abc2 abc4 abc8 abc10 abc10 abc7 abc3 abc10 abc6 abc1 abc8

Contains:
abc1: 3
abc2: 4
abc3: 3
abc4: 3
abc5: 0
abc6: 2
abc7: 2
abc8: 2
abc9: 1
abc10: 5