2,011 minus 1,958 is 53.
54
1958
1,993 minus 2,013 is -20.
2,013 minus 1,919 is 94.
2,013 minus 1,929 is 84.
2,013 minus 1,727 is 286.
2,013 minus 30 is 1,983.
2,013 minus 1,912 is 101.
1,956 minus 2,013 is -57.
2,013 minus 1,956 is 57.
2,013 minus 1,936 is 77.