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logger._print('original array = [' + D[0].join(', ') + ']');

function pow(base, expo) {

var ans = 1;

for (var i = 0; i < expo; i++) {

ans *= base;

}

return ans;

}

function digit(i, exp) {

return parseInt(D[0][i] / pow(10, exp) % 10);

}

for (var exp = 0; exp < 3; exp++) {

logger._print("Digit: " + exp);

var i;

for (i = 0; i < D[0].length; i++) {

var d = digit(i, exp);

tracer._select(0, i)._wait();

D[2][d] += 1;

tracer._notify(2, d, D[2][d])._wait();

tracer._denotify(2, d);

tracer._deselect(0, i);

}

for (i = 1; i < 10; i++) {

tracer._select(2, i - 1)._wait();

D[2][i] += D[2][i - 1];

tracer._notify(2, i, D[2][i])._wait();

tracer._denotify(2, i);

tracer._deselect(2, i - 1);

}

for (i = D[0].length - 1; i >= 0; i--) {

var d = digit(i, exp);

tracer._select(0, i)._wait();

D[2][d] -= 1;

tracer._notify(2, d, D[2][d])._wait();

tracer._denotify(2, d);

D[1][D[2][d]] = D[0][i];

tracer._notify(1, D[2][d], D[1][D[2][d]])._wait();

tracer._denotify(1, D[2][d]);

tracer._deselect(0, i);

}

for (i = 0; i < D[0].length; i++) {

tracer._select(1, i)._wait();

D[0][i] = D[1][i];

tracer._notify(0, i, D[0][i])._wait();

tracer._denotify(0, i);

tracer._deselect(1, i);

}

for (i = 0; i < 10; i++) {

D[2][i] = 0;

tracer._notify(2, i, D[2][i])._wait();

tracer._denotify(2, i);

}

}

logger._print('sorted array = [' + D[0].join(', ') + ']');