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/*
* Copyright (c) Facebook, Inc. and its affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
int f(int x);
int g(int x);
int f(int x) { // x= 0, 1, 2, ...
return g(x + 2);
}
int g(int y) { // y= 2, 3, 4, ...
if (y > 5) {
return y;
}
return f(y - 1); // Back edge!
}
int main() {
f(0);
return 0;
}